Learn how to install any switch games on your modded Nintendo Switch with TinFoil. Follow the easy steps and links in the video description.Just Another Switch Serial Number Checker - Quickly and easily check the patch status of your Nintendo Switch console using our simple online tool. Select a prefix and type the first 6 digits of your switch Serial Number: 0/6 If you don't see the prefix of your Nintendo Switch console on our website, it's likely that your console is too recent ...Hekate USB UMS functionality works without issue. When charging the Switch from off or flat battery, the Switch will automatically goes into RCM mode (for Auto-RCM). Once charger plugged out. Internal RCMloader will automatically kicks in and inject the payload. It is recommended to use Auto-RCM (activated from Hekate).Those keys mean pretty much nothing. Mariko's key encryption key is equivalent to the tsec root key on Erista, both are used to derive a master kek (which is the same between Erista and Mariko) that's then used to derive a master key, which is then used to derive a shit ton of other keys (pk21 key, NCA keys, etc).I want to update my switch (unpatched FW10.1.0 and atmosphere 0.14.1) to the latest FW (13.0, I think) along with the latest version of atmosphere (1.2 in pre-release). Before posting a new thread I looked around and found this post. I would hate to mess up the whole system so I want to proceed slowly here. I read a lot of posts and guides here ...My switch was unpatched and I hacked it just fine. Great! However, the console was banned and I called Nintendo on the phone to get it unbanned, but it's impossible. On top of that the dock doesn't work. But if you can find • • ...With buying an unpatched tablet, you will have a separate device for your pirated stuff, a much easier mod process, and less chances to get scammed for something to happen during shipping. The best way to buy an unpatched tablet is instead of searching "unpatched switch" on eBay, just use the more broad "Nintendo switch" search term and pay ...Learn why you should know if your Switch has the patch that blocks Fusee Gelee exploit and how to find out your serial number. See the list of unpatched and patched serials and the risks of modding your Switch.pretty easy check ebay, local game store which sell switches like gamestop or cex you will have to check serial numbers though. even check facebook market place as loads of parents of kids sell on there now too. 2. Reply. DrexusRE. • 1 yr. ago. Thx everybody I tried ebay and i found a used unpatched one for 250$ ! 1. Reply.I got my Switch SX Core installed 3 weeks ago. There had been an additional 50% tax to video games and now prices have increased a lot . 2nd hand Switches price got up to 397$! And people who realised that their Switch was hackable, they were adding extra fee and in the end soldering SX Core and buying a new unpatched switch equaled themselves.In this video I show you how you can easily mod/jailbreak/homebrew your Nintendo Switch on the latest firmware 17.0. All the links in the description update ...Unpatched Nintendo Switch. Not all Nintendo Switch consoles can be hacked; your Switch must be an earlier model (determined by the serial number) that is vulnerable to the fusee-gelee exploit; Visit ismyswitchpatched.com and enter your Switch's serial number (found on the white strip next to the USB port) to check if your Switch is hackableHave one unpatched V1 switch and a V2 switch for sale V2 switch: 200 USD shipped - Neon red/blue joycons - Includes all accessories, including dock, oem charger, grip, and joycon straps Switch #2: 250 USD shipped - Gray joycons - Includes all accessories above except for one joycon strap Will part out for folks interested.Step 2: set up your sd card in fat32 format. Download hekate and atmosphere, set up your sd card with the utilities you want from sdsetup.com - Keep this to a minimum of 1 gb if you are installing Android or Linux. ***only unpatched switches can use android and Linux. Chipped users are out of luck for now. The thing is: His switch is unpatched and I'm using my jig (which works well on my switch), but everytime I want to go into RCM mode, the switch just boots up normally. I completely power off the switch, slide the jig in the right joy con rail, and then hold volume+ and power at the same time with no luck. The switch just turns on regularly. Press and hold volume + and hold power for say 3 seconds the screen should not show logo. If it does not, then plug in cable to pc with tregra gui open should show rcm mode in green if its in rcm and the apx driver is isntalled. OH and most importantly make sure its on the right side and not the left lol.Booting Into Linux. To boot your Nintendo Switch into Linux, hold the volume up button while switching on your device. The payload you transferred should then boot into your chosen Linux distribution. The transformation only happens when you boot up. When you turn off your console and restart normally, it will still be a Nintendo Switch.Nintendo Switch UNPATCHED - Low Serial Number - HAC-001 - V1 Model Bundle. Pre-Owned. $102.50. 39 bids. Nintendo Switch UNPATCHED V1 Hac-001 Console Only Tested 1 Day Shipping. Pre-Owned. $91.00. 20 bids. Nintendo Switch UNPATCHED V1 Hac-001 Console Only Tested 1 Day Shipping.The Switch has been blown wide open, you can pretty much do anything you can think of with a tablet on it. You can play game backups, you can use an emuMMC to switch between having a "hacked" Switch and having a "stock" Switch to play online with, you can run Linux, you can run Android and use it like any other tablet, and there are various ways of either streaming your Switch screen to your ...Keep it. All the new switch versions will be impossible to hack. Always keep V1 switch. um... no. OLED will not be hackable, at least not for a while. so unless you don't care about your hacked switch and want to get a normal unhacked one, its not worth it at all to sell it.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday TicketSwitch OLED confirmed hacked. Chinese youtuber "Youkan Papa" has showcased the Switch OLED running Hekate perfectly (video below), using what seems to be the Team Xecuter modchip. It's not entirely surprising that Hekate runs on the OLED Switch, as support for the latest Switch console had been added in 5.6.0, about 6 weeks ago. In ...At his point I just wanted to get the system working, so I put my dead nand in my unpatched switch, insert the micro SD card from the ipatched switch to the unpatched and did a SD card emummc backup that I later flashed to the dead nand and the ipatched switch boots up now and shows OFW16 now I understand this means it can't run cfw but at ...Get information on everything revolving around piracy on the Nintendo Switch from apps, games, development, and support. That being said, if you enjoy a game and you have sufficient money consider supporting the developers by buying it :-) No one, anything posted here, or any content is endorsed, sponsored, or posted by, for, or on Nintendo's behalf.Unpatched Switch OFW Update Advice. I have an unopened switch (Mario odessy bundle) so I think it has ofw 2-3 on it. Looking to use install & use SX pro. Should I update to OFW 11.01 (compatible with latest sx os) officially online and then setup sx os (dump sysnand, set up emunand etc..). or it is recommended to update offline with other ...temporarily hack a second unpatched and unbanned switch to transfer the saves on it, then transfer them through the official method For the solution 2, I could use my gf switch, that is also unpatched, but of course I don't want to take too much risks of getting it banned, and I want to keep it as untouched as possible.Hi, just got my hands on a hackable switch and got my micro sd card, still waiting on the jumper thingy. When I got the switch its firmware was already at... Cheat Codes Add and Request group The Legend of Zelda: Tears of the Kingdom cheat codes Pokémon Legends: Arceus cheat codes Xenoblade Chronicles 3 cheat codes Fire …I made sure to have an unpatched switch, I don't know that to do. TegraRCM freezes on injecting any payload, even the ones that does not require an sd. The switch is on AutoRCM mode and I was able to inject payloads until my dad updated the firmware on the normal original boot (OFW through Hekate), not the CFW. Reply. S.Booting Into Linux. To boot your Nintendo Switch into Linux, hold the volume up button while switching on your device. The payload you transferred should then boot into your chosen Linux distribution. The transformation only happens when you boot up. When you turn off your console and restart normally, it will still be a Nintendo Switch.Learn the difference between unpatched and patched Switch consoles, and why unpatched V1 models are the easiest to hack. Find out how to check your Switch model, and what options are available for other models.The situation is that I'm just 'thinking' about selling one of my Switch consoles, it's a V1 that was professionally fitted with a Trinket M0 by MattyTrog (it had all straps fitted. Vol+ strap, joycon strap, USB strap). ... Unpatched goes for 250-350 usd now a day. People would be willing to paid money for something that is rare these units are ...The unpatched tablet only sales go for around $180 on ebay right now. I'm still trying to find a good deal on an unpatched system one but probably will end up trying my luck on facebook marketplace as those tend to be around $200.Apr 10, 2023 · So, how do I hack my Switch Lite, Switch OLED, Patched V1 Switch, or V2 “Mariko” Switch in 2023? Let me go straight to the point: if you want to hack your Switch in 2023, the easiest way remains to buy an unpatched V1 model ( e.g. on eBay ) and hack it the easy way, as described above in this article. from United States. Nintendo Switch V1 Low Serial HAC-001 Unpatched (For Parts / Repair) Parts Only. C $171.90. pedrofon (56) 100%. Buy It Now. +C $25.79 shipping. from Portugal. Nintendo Switch UNPATCHED - Low Serial Number - HAC-001 - V1 Working Model.Don't touch your 4.1.0 ofw at all! I just hope you haven't already. Get sxos, make a backup first in the options menu, then setup emunand with hidden partition on the sd card, update your emunand to the latest firmware exfat using ChoiDujournx and away you go setup your switch settings as normal just make sure from now on you always boot into emunand which it should by default.1. Play games on your patched Nintendo Switch. While an unpatched console may offer more options, you can still play a wide variety of games on your patched console. You can purchase physical copies of games from retailers like Amazon, or look for used copies on second-hand marketplaces. Alternatively, you can purchase digital copies of games ...I got my Switch SX Core installed 3 weeks ago. There had been an additional 50% tax to video games and now prices have increased a lot . 2nd hand Switches price got up to 397$! And people who realised that their Switch was hackable, they were adding extra fee and in the end soldering SX Core and buying a new unpatched switch equaled themselves.Unpatched Switch OFW Update Advice. I have an unopened switch (Mario odessy bundle) so I think it has ofw 2-3 on it. Looking to use install & use SX pro. Should I update to OFW 11.01 (compatible with latest sx os) officially online and then setup sx os (dump sysnand, set up emunand etc..). or it is recommended to update offline with other ...Mar 22, 2024 · May 14, 2023. #9. CFW in sysnand isn’t problem as long as you use save manager, save editor, cheat and translation patch offline with airplane mode enabled and auto connect disabled. There are people reported that they don’t have issue with run the CFW online, but it is big risk. A forum thread where users share tips and links on how to install custom firmware on unpatched switch consoles. Learn about backup, keys, dualboot, and firmware updates.It's the unpatched version and since they're hard to come around now, I went for it. Definitely gonna install homebrew and enjoy the mightiness of the Switch. It has not yet arrived and I can cancel the purchase anytime.Nintendo Switch UNPATCHED Hac-001 Console Only Fast Shipping from japan (212) 212 product ratings - Nintendo Switch UNPATCHED Hac-001 Console Only Fast Shipping from japan. $155.00. Free shipping. Nintendo Switch OLED Console Only -NO Joy Cons HEG-001 Black - SEE PHOTOGet the v1 unpatched switch. It depends. If you have the money to spend on an OLED switch ($350) + Chip ($180) + Install ($150) + MicroSD ($50-70), which is $780-800) then odds are you don't even need to mod it, as you could probably just afford the games. However, you do get a substantially better display.Hey everyone, I have an old unpatched V1 Switch (A), and I a new modchipped (Picofly) OLED Switch (B). I want to use my old SD card in my new switch. Someone in reddit told me when I put it inside, I can use it directly. But when I'm in hekate menu (v6.0.4) and send payload fusee.bin I got an...Hi guys, This is my first post asking for some advice. I was given a Nintendo switch which is dead. It goes straight to the blue screen when powered on. I found out that it is an unpatched unit. Just to make sure that the RCM and payload injection works, I followed some steps which brought up...Many newer high quality switch docks such as the Jumpgate and Genki Covert dock fixed this issue by just using real power delivery chips. This also applies with third-party chargers and power supplies, cheap no-name brands are more likely to damage your switch (and probably your other electronics as well) way more so than reputable brands.Unpatched Switch only. Remove the right joy-con and insert the jig, and push it all the way down into the bottom of the joy-con rail. Press and hold the Volume + button for 2 seconds, continue to hold, tap the Power button then let go of both buttons. Your screen should remain black and your Switch will be in RCM.Can someone point to me to guide to restoring an unpatched switch back to factory soft/firmware? All I seem to be able to find is guide on how to mod it. I have a backup that I made before I modded anything. Thanks in advance!Best way to find an unpatched Switch is to canvas your local second hand stores, pawn shops, and flea markets. Facebook is a handy tool as well, usually you can get people selling in groups or the local marketplace to give you the serial number if you ask. I got mine from a local buy/sell group on Facebook.Valdrrak. • 6 mo. ago. It depends how many switch games do you want to not buy and add up the cost and then see if that number is worth it to you. Tbh I buy every system at launch and hold onto it till it's hackable so personally I think it's def worth buying unpatched if you can ensure that it is. 2.In this video I talk about what Nintendo Switch you should buy in 2021. Forget the Switch Lite, forget the switch pro - get an original second hand unpatched...Nintendo Switches can be broadly categorized into 5 designations: the V1 Switch Original or the unpatched Erista ones, the Patched V1 or the iPatched Erista, V2 also known as Mariko, the Switch Lite and the OLED Switch. What you can or cannot do in terms of hacking a Switch is entirely dependent on which model you have.If you have an RCM vulnerable switch (an unpatched switch i.e. any switch made before June 2018), not really. As long as you can use RCM you don't ever have to worry about fuses. CFW payloads (such as Atmosphere, etc) completely ignore fuse count. The only issues you would possibly have from having less fuses or mismatched fuses would be not ...Going over a simple website you can use to determine whether you are in the right step into installing custom firmware on your Nintendo Switch. Stay tuned fo...Valdrrak. • 6 mo. ago. It depends how many switch games do you want to not buy and add up the cost and then see if that number is worth it to you. Tbh I buy every system at launch and hold onto it till it's hackable so personally I think it's def worth buying unpatched if you can ensure that it is. 2.Have a Unpatched switch never been hacked never been banned, its in mint condition. I do have the original box for it and it comes with everything it originally came with so : dock, power cable , hdmi cable , 2 joycons, joycon grip, 2 joycon straps and the switch.Aug 8, 2018. #20. Regardless of whether your switch is patched you can still enter RCM mode, you just cant exploit it. So if you are not getting a black screen it means your pins are not grounding properly, which means that …NSloaderRB Developer: Hao Hu. Price: Free. 4.8. Download. All in all, the Nintendo Switch running Android is certainly more viable to use than it was before, but it's nowhere near perfect. I'll ...Techically any switch can get banned, & yes patched switches are hackable, thats not new. I also dont know how on earth your getting 600$ for unpatched either. Unpatched switch tablets on Australian ebay can go for 250$-300 tablet only, and AUD is worth less than USD. Also worth mentioning, patched switches FW 4.01 or below don't require a ...Hacking Unpatched switch can I use Re, pagescope web exploit. Thread starter Manaboy; Start date Jun 19, 2022; Views 1,398 Replies 16 M. Manaboy Well-Known Member. OP. Newcomer. Level 3. Joined Dec 18, 2017 Messages 68 Trophies 0 Age 36 XP 247 Country. Jun 19, 2022 #1i can change in between these 2 modes, as long as I power it off before changing it. This isn't really true. You don't need to fully power the Switch off; if you replace the reboot_payload.bin file with Hekate's BIN file (and rename it to reboot_payload.bin ), a soft reboot will bring you back to Hekate, where you can choose where to boot. 10.A forum thread where users share tips and links on how to install custom firmware on unpatched switch consoles. Learn about backup, keys, dualboot, and firmware updates.You can have a permanent option with a physical mod. You can use a trinket m0 board as a mod on unpatched units. For patched units, and Mariko (v2 and Lite) units, you can use the SX Core/Lite. The reason why there's not a permanent cfw like on 3ds is the same reason others have said, you totally block off all legitimate online functions.Not all v1 switches are unpatched. It depends on the serial number, there are some websites where you can check if it is patched or not, but you need the serial number. 5. Reply. AFthrowaway3000. • 2 yr. ago. It depends on when the V1 was produced. And ultimately that boils down to the serial number.Best way to find an unpatched Switch is to canvas your local second hand stores, pawn shops, and flea markets. Facebook is a handy tool as well, usually you can get people selling in groups or the local marketplace to give you the serial number if you ask. I got mine from a local buy/sell group on Facebook. Finding your serial number. The first thing to do is determine if your Switch is vulnerable to fusee-gelee, the exploit we will be using to launch CFW. This vulnerability was independently discovered by several different Switch hacking teams, and multiple variants of it were released to the public in April 2018 after a 90-day disclosure period ... Nintendo announced the OLED model switch today and from what it looks like, there isn't any major hardware upgrades. I think we'll have a more definite answer when it's launched, but given that the resolution of the panel hasn't changed (possibly the same pin connector), how likely is it to use this panel on an unpatched switch? Some of the bestselling unpatched switch available on Etsy are: Modded Wii Console Bundle w/1tb external HDD; Pokemon DS Games Bundle 23-in-1 Nintendo DS Cartridge Multi-Game Collection & Digital Download; 1 TB 1000 GBs memory for Sony Psvita 1000,2000 SD2Vita Preloaded with Games, Apps, and Software, All in One, Ready to Play Hacking Unpatched switch can I use Re, pagescope web exploit. Thread starter Manaboy; Start date Jun 19, 2022; Views 1,398 Replies 16 M. Manaboy Well-Known Member. OP. Newcomer. Level 3. Joined Dec 18, 2017 Messages 68 Trophies 0 Age 36 XP 247 Country. Jun 19, 2022 #1A "unpatched" switch is going on ebay for 530-580CAD. Just wanted to give the heads up that you can actually profit by "upgrading" your switch, because some people don't know about this. Mods, please send me a PM if this somehow breaks any rules. This is pretty useful information that most people should know ^^ Thanks :PNew and used Nintendo Switch for sale near you on Facebook Marketplace. Find great deals or sell your items for free.smtdimitri. • 3 yr. ago • Edited 3 yr. ago. Injecting a payload will let you know if your switch is hacked or not, and don't worry if it is patched, because the switch won't act up or anything, it just boots normally and nothing happens. If it is unpatched, you will know because you will get a response and you can continue hacking it if you ...Item details. Handmade. Tested and fully functional. The screen has a screen protector and there are no scratches and scuffs on screen. The console is in good condition, just enough scratches or scruffs. This Switch is guaranteed to have a definitely unpatched serial number. It is not banned from Nintendo Store or online play. Never been modified.Get information on everything revolving around piracy on the Nintendo Switch from apps, games, development, and support. That being said, if you enjoy a game and you have sufficient money consider supporting the developers by buying it :-) No one, anything posted here, or any content is endorsed, sponsored, or posted by, for, or on Nintendo's behalf.Hi guys, I managed to snag myself an unpatched Switch and bought a large, fast SD card to use with it. I have yet to hack it. When I put the SD card in, the Switch says I need to update before I can use it because it is an HDXC card.Get information on everything revolving around piracy on the Nintendo Switch from apps, games, development, and support. That being said, if you enjoy a game and you have sufficient money consider supporting the developers by buying it :-) No one, anything posted here, or any content is endorsed, sponsored, or posted by, for, or on Nintendo's behalf.Country. Mar 9, 2022. #8. impeeza said: Yes the guides have section on how to install the hardware mods needed on patches units, here on GBATem even are tutorials about the firmware update of them and the use of adapters to install on OLED models. Pretty sure they don't have a chip or are even wanting to go that route.SSNC v1.2.0⁹ Switch SN Checker Support me Categories Checker Barcode Scanner About Checker Input your serials in the text box (one per line)There are Facebook groups or Discord servers about Switch CFW in general, and sometimes people sell their unpatched Switch at good price there. I own two. One clean for $235 for no dock and one accessory. the other very clean with dock and accessories for $200. Both on Facebook market place.Unpatched units have a hardware exploit versus patched units that have had the hardware exploit fixed. Basicslly, Patched Switches cannot be hacked. Unpatched Switches can be hacked. Edit. When you are looking for a Switch be sure to find one that isn't patched.Best to know whether your Nintendo Switch is patched or unpatched.You might have something rare in your hands.See if your Switch is patched: https://ismyswit... Best to know whether your Nintendo ...148. Country. Sep 2, 2021. #16. Dust2dust said: That's why you had to get one when the time was right. I got two unpatched Switch consoles. I bought the first one maybe a year after launch, and it sat in the closet unused for a long time. My second Switch was bought soon after Fusee-Gelee was released.
If you've been regularly updating your firmware, your Switch might not be moddable. Usually, the newest units produced in the last few years aren't vulnerable to the exploit. For Serial Numbers beginning in XAW1 Serials between XAW10000000000 to XAW10074000000 are unpatched and moddable.. Trabajos en el aeropuerto de miami
Find switch unpatched in All Categories in Canada. Visit Kijiji Classifieds to buy, sell, or trade almost anything! Find new and used items, cars, real estate, jobs, services, vacation rentals and more virtually in Canada.Get information on everything revolving around piracy on the Nintendo Switch from apps, games, development, and support. That being said, if you enjoy a game and you have sufficient money consider supporting the developers by buying it :-) No one, anything posted here, or any content is endorsed, sponsored, or posted by, for, or on Nintendo's behalf.Price is too high even for an unpatched console. Try to negotiate, something below 200. The only way to know if a switch is unpatched is by putting it in RCM mode and sending a payload over USB (can be done with an Android phone or a PC). If the payload runs it's unpatched, if it doesn't boot and stays in RCM mode, it's patched.Valdrrak. • 6 mo. ago. It depends how many switch games do you want to not buy and add up the cost and then see if that number is worth it to you. Tbh I buy every system at launch and hold onto it till it's hackable so personally I think it's def worth buying unpatched if you can ensure that it is. 2.r/SwitchPirates. • 2 yr. ago. iSyTheGreat. Unpatched Switch has no Serial. Help! Recently I bought unpatched switch with no serial, according to the previous owner he hacked it before but he clean it already but the serial is missing so I cannot connect it to Nintendo e-shop to confirm if its banned already or not.Get information on everything revolving around piracy on the Nintendo Switch from apps, games, development, and support. That being said, if you enjoy a game and you have sufficient money consider supporting the developers by buying it :-) No one, anything posted here, or any content is endorsed, sponsored, or posted by, for, or on Nintendo's behalf.Guys I'm on the fence about buying a switch and am looking for some advice. I was originally thinking that I would wait for Team Executer to release their hardware mod and buy a Mariko switch and have the additional battery life. But I have a friend who is selling his unpatched (unhacked) switch and I confirmed the serial is patchable.Drag and drop fusee_primary.bin into whichever folder you want. I chose User1 (yellow). (Replaces Step 5 of PC-based steps) Plug it into your Switch when it's turned off, put the Switch in RCM mode (hold Vol+, then hit power at the same time) and it'll boot right into Atmosphere. (Replaces Step 7 of PC-based steps)If the serial number begins with XAW7 and has these numbers: XAW70000000000 to XAW70017800000: unpatched and moddable. XAW70017800000 to XAW70030000000: may be patched, may not be moddable. XAW70030000000 and up: definitely patched, not moddable. If the serial number begins with XAJ1 and has these …Searching from where ti buy a v1 unpatched switch and i just cant seem to find a site that delivers to my country. Only place that i can think of is ebay but msot are sold over 200 eur just tablet and high delivery cost. Facebook marketplace locally will be the cheapest. Otherwise your stuck with places like eBay. This isn't really true. You don't need to fully power the Switch off; if you replace the reboot_payload.bin file with Hekate's BIN file (and rename it to reboot_payload.bin ), a soft reboot will bring you back to Hekate, where you can choose where to boot. Your understanding is correct. Your understanding is correct. #switch #nintendoswitch #atmosphere #hekate #switchjailbreak🔥 Thank you for watching! Subscribe and hit the notification bell!My Switch Tutorials:How to ins...We basically started a survey where everyone with a Switch was able to report if there's was patched or unpatched. From this data, we inferred where the cutoff points for a safe buy should roughly be. You just discovered that the cutoff point for a Switch in the XAW1 line is a bit higher than previous known.Alternatively, is it better to not search 'unpatched switch' and just to try and find an old switch from someone who isn't aware of modding. Thanks for any advice. Reply. D. de9ed Well-Known Member. Member. Level 6. Joined Oct 22, 2020 Messages 278 Trophies 0 Age 30 XP 919 Country. May 23, 2021Once you're done with unpatched switch online shopping, you may want to pop over to our gift guides to find some presents for those extra-special occasions (think birthdays, weddings, housewarming, anniversaries and all those festivals) that are made with the utmost love and care by real people for your closest friends and family members! ...Nintendo Switch UNPATCHED Hac-001 Console Only Fast Shipping from japan (212) 212 product ratings - Nintendo Switch UNPATCHED Hac-001 Console Only Fast Shipping from japan. $155.00. Free shipping. Nintendo Switch OLED Console Only -NO Joy Cons HEG-001 Black - SEE PHOTO.