Have I missed something in unlocking the bootloader and flashing ROms? - OnePlus 8 Pro Questions & Answers

It's been a while since I have beein this world. I used to be constantly flashing my phone and tablets, but for one reason or another I stopped. I've been happy with the 8 pro, just getting a little bored and a little more privacy minded. I don't seem to be able to unlock my bootloader. I tried every set of directions, different pcs, diffeent cords, nothing. I have and IN2025 from the US. The ulock the bootloader option is in red and I can't pick it. I just read an article about how one plus reallly likes this kind of thing and that is what inspired me to start flashing away, but I have had no luck.

Is your phone carrier model with carrier specific rom inside of it? Could that be the reason? Anyway, enable USB Debugging from developer options and try oem unlock from fastboot. Keep in mind that it will wipe your phone completely so backup everything you don't want to be lost forever.
Also you might void your warranty.

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[Q] I've searched but can't find an answer to these noob questions.

I'm sure this has been asked before, and I read the terms when I signed up for forum.xda-developer.com, watched the videos, etc so I've been hesitant to ask this question. The thing is, after two days of searching, I can't find an answer to these questions that I'm sure a lot of new users have. I'm testing my luck and asking it here.
When I get my Nexus 7 (it's due to be delivered in a couple of days) I want to unlock/root it right away. I know that unlocking the boot loader will wipe the user data, and that it's a "pure" Android device. I don't plan to install any custom ROMs or do anything that wouldn't be possible on that stock device right away, but I want the option to be able to customize in the future. Since unlocking wipes the device, I'd rather just do it right away rather than have to deal with reinstalling a bunch of apps a month or two down the road when I'm ready to try out some custom ROMs, etc.
These are my questions:
1) Is there anything pre-installed on a Nexus 7 that isn't easily recovered after it wipes when unlocking? Followup: Will the pre-installed apps (eg. gmail) still be there after I unlock, or will I need to download them? Should I make a list of the apps that are pre-installed on the device before I unlock the bootloader to make re-installing them easy, or will they still be there?
2) Does unlocking the boot loader really void the warranty? I mean, if my device starts to show some physical problem in a couple of months (eg. screen lift, not charging) can I just re-lock it and send it in? What if it just won't turn on one day, therefore not giving me the ability to re-lock it? If I send it in, unlocked and rooted but bricked (through no fault of my own - I'm talking about a physical problem, if it was my fault I would not even bother trying to get it replaced) will they say "You voided your warranty when you unlocked it"?
Again, sorry for posting questions I'm sure have been asked before, but I just want a precise answer.
Thanks!
EDIT: BTW, I bought it straight from Google Play, I should have mentioned that before
rm79 said:
I'm sure this has been asked before, and I read the terms when I signed up for forum.xda-developer.com, watched the videos, etc so I've been hesitant to ask this question. The thing is, after two days of searching, I can't find an answer to this question that I'm sure a lot of new users have. I'm testing my luck and asking it here.
When I get my Nexus 7 (it's due to be delivered in a couple of days) I want to unlock/root it right away. I know that unlocking the boot loader will wipe the user data, and that it's a "pure" Android device. I don't plan to install any custom ROMs or do anything that wouldn't be possible on that stock device right away, but I want the option to be able to customize in the future. Since unlocking wipes the device, I'd rather just do it right away rather than have to deal with reinstalling a bunch of apps a month or two down the road when I'm ready to try out some customer ROMs, etc.
These are my questions:
1) Is there anything pre-installed on a Nexus 7 that isn't easily recovered after it wipes when unlocking? Followup: Will the pre-installed apps (eg. gmail) still be there after I unlock, or will I need to download them? Should I make a list of the apps that are pre-installed on the device before I unlock the bootloader to make re-installing them easy, or will they still be there?
2) Does unlocking the boot loader really void the warranty? I mean, if my device starts to show some physical problem in a couple of months (eg. screen lift, not charging) can I just re-lock it and send it in? What if it just won't turn on one day, therefore not giving me the ability to re-lock it? If I send it in, unlocked and rooted but bricked (through no fault of my own - I'm talking about a physical problem, if it was my fault I would not even bother trying to get it replaced) will they say "You voided your warranty when you unlocked it"?
Again, sorry for posting questions I'm sure have been asked before, but I just want a precise answer.
Thanks!
Click to expand...
Click to collapse
1. itll just wipe away any user data or anything you put into the storage. basically youll just be factory resetting the device.
2. it really depends where youre buying it and whose warranty you are using. i exchanged my original seven a bit more than a month ago, it stopped charging completely. i exchanged it with root, with an unlocked bootloader, with a custom boot animation, with a custom recovery, and with a custom rom and kernel too. there was never an issue if it was unlocked/rooted. it was an obvious hardware issue. i got mine through the google play store. literally after 3 minutes talking to the customer service rep, he had an exchange started for me. google is really good about keeping the warranty if the device unlocked/rooted, if its a hardware issue. i didnt even have to relock/unroot when i sent mine in(after receiving the replacement. that said, other vendors will have issues with warranty exchanges if the device is unlocked. but its as easy to lock the bootloader as it is to unlock it. its as easy to unlock it by typing "fastboot oem unlock" via fastboot, and as easy to lock it typing "fastboot oem lock" to lock it back up.
1. So basically it will still have the pre-installed stuff on it?
2. Awesome, I ordered mine from the play store so that's good to hear.
Thanks for the info, you rock!
simms22 said:
1. itll just wipe away any user data or anything you put into the storage. basically youll just be factory resetting the device.
2. it really depends where youre buying it and whose warranty you are using. i exchanged my original seven a bit more than a month ago, it stopped charging completely. i exchanged it with root, with an unlocked bootloader, with a custom boot animation, with a custom recovery, and with a custom rom and kernel too. there was never an issue if it was unlocked/rooted. it was an obvious hardware issue. i got mine through the google play store. literally after 3 minutes talking to the customer service rep, he had an exchange started for me. google is really good about keeping the warranty if the device unlocked/rooted, if its a hardware issue. i didnt even have to relock/unroot when i sent mine in(after receiving the replacement. that said, other vendors will have issues with warranty exchanges if the device is unlocked. but its as easy to lock the bootloader as it is to unlock it. its as easy to unlock it by typing "fastboot oem unlock" via fastboot, and as easy to lock it typing "fastboot oem lock" to lock it back up.
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yes, nothing changes unless you change the rom you are using to a custom rom. then you get whatever that rom developer decided to include. but if its google apps, you can always pick them up from the play store or from flashable "gapps".
simms22 said:
yes, nothing changes unless you change the rom you are using to a custom rom. then you get whatever that rom developer decided to include. but if its google apps, you can always pick them up from the play store or from flashable "gapps".
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Click to collapse
Cool. Thanks for that. Like I said I'm not going to change the ROM right away, I just don't want to deal with restarting because of an unlock in a month .

T-Mobile Carrier Unlock Question

It looks like the T-Mobile v20 is carrier unlocked via the Device Unlock app. That assumes the phone is eligible for an unlock, which mine is. The problem is that I'm running a custom ROM, and the Device Unlock app doesn't appear to work on anything other than a stock load. That's even running Magisk and confirming that everything is "hidden". I base this assumption only on some stuff I found while searching the forums.
So the obvious solution is to flash back to stock. If that's the only way to do it, fine. It's a pain but I'll do it. Does anyone know if there is an alternative bit of trickery so that it can be done on custom ROMs?
It's not so much the backup/wipe/load/unlock/wipe/restore process I'm trying to avoid. I do that all the time when I want to play with other ROMs. It's the bootloader/recowvery stuff, and plus it looks like the stock image isn't just a standard zip.
I appreciate any input, even if it's just to confirm I have to go back to stock.
as far as I know the bootloader has to be locked for the app to work... I'm always on stock and despite removing root the app would just keep trying to contact the server. it wasn't until I locked the bootloader that the app went through and contacted the server

Help bypassing lockscreen; unfamiliar with device

Hello,
I am trying to work around/bypass the password lockscreen for a friend that accidentally set it (I think her kid did) and doesn't know what the actual password is. I've already tried ADM and Samsung's "Find My Mobile" service but neither were helpful.
So I'm pretty sure my only two options now are to backup the existing data to my PC (though I'm not sure how given that I don't have access to important functions like ADB, custom recovery, etc.) and then factory reset the phone, OR just deal with the KNOX/warranty flag being tripped and delete the necessary files from /data/system using a custom recovery. If there's another alternative I'm missing, I would love to hear it.
Excuse me for already jumping ahead, but assuming I go the latter route, what would be the easiest way to flash a custom recovery? I've already looked at various other posts on this phone's board regarding rooting and everything looked quite involved.
The phone says it's a G935PVPS4BQE1, if that helps.
Thanks in advance.
P. S. I currently come from a OnePlus One, though I previously had a Galaxy S3 and remember quite vividly how much of a huge pain it was to properly root the device and deal with KNOX. I imagine the rooting process is even more of a pain with more recent Samsung phones.

S8 Patten lock help PLEASE

Good day
i come to you with a story that many of you might have heard,
Good friend of mine passed away last weekend in a motorbike accident his funeral was today 11/17/2018
His wife asked me today if i can help remove the Patten lock of his phone as she wants to get the photos of the daughters play of the phone
she knows his Patten lock for all of his other phone but this one is different for some reason, because she knows everything the steps i have tried is as followed
1. Samsung account to remotely unlock the device ( S8 was not registered with the account ) only the S4 that was stolen many years ago
2.Google find my device i don't see an option there
3.looked thru all 5 email account including the outlook account nothing there ( We played online together as well)
things i know because i have been at this all day
( I have Googled this ) all my phones are rooted and have a custom recovery
His phone was never Rooted, no custom recovery, i highly doubt he had OEM unlock usb debugging etc
please can someone point me i the right place or help me if its even possible
thanks all for taking the time to read this
PS. The lock Screen does not have a option to use the gmail via recovery, again thank you all
Go into download mode (vol down, bixby and power on at the same time) to check if he really never had OEM unlocked.
It's a worth try it.
If he had, you could easily flash TWRP and recover the files.
If not it's a tough nut to crack.
I will brainstorm a little bit.
T3L3P4TH said:
Go into download mode (vol down, bixby and power on at the same time) to check if he really never had OEM unlocked.
It's a worth try it.
If he had, you could easily flash TWRP and recover the files.
If not it's a tough nut to crack.
I will brainstorm a little bit.
Click to expand...
Click to collapse
Thanks for the quick reply i have done that, OEM is locked
Okay then, we need a different angel of view.
Did you try common numbers out of his life?
Such as birthdates, special events from children/wife, banking pin, something like this?
The other method would be to reflash the firmware via odin, unlock OEM, flash TWRP and then recover the pictures with DiskDigger Root Access.
The problem in this method is, that it isn't guaranteed that it works.
I consider this as the last chance, if everything else fails.
You wrote that you don't have any restore options in pin menu.
Is there anything else that could help or that you can tap?
Any Options or so?
A diagnose from far away is not that accurate of course and really would like to help.

Locking bootloader on US variant xt1806

I went to switch to a different carrier, and was on cricket, and also tried tmobile both wich worked fine unlocked bootloader and rooted.
I then switched to sprint, and verizon and found out both carriers the phone would not work right. The data worked but the call and texting did not.
As a side note, I was informed by someone who was on sprint, and he said that you had to get on the network unrooted and locked bootloader, once registered you could then root and get the bootloader unlocked and be just fine.
So I then proceeded to unroot the phone ie: removing everything root, and keeping twrp with an unocked bootloader only, no sign of root. I took the phone back to the stores and tried again, and the phone still had the same issue.
After finally finding a way to finally after 6mo lock the bootloader again, and was at pure stock, locked bootloader and no root.
What this tells me is that some how verizon and sprint both some how some way detect an unlocked bootloader....how? I have no clue, I've never in my 5+ years of rooting multiple phones, never ever ever seen anything like this. The only reason I know this is what it was, is from common deduction and reasoning.........unroot = still doesn't work.....locked bl = works fine with not a single issue. Keep in mind this was all with base stock rom, not a custom rom.....everything was stock, accept for the root and un;ocked bootloader part. I rooted with magisk.
Since I had a very long time and issue with locking the bootloader, (about 6mo) after trying a ton of things, without resolve, I FINALLY got the bootloader locked.
If it's going to be anything like before trying to get it locked again to work on sprint and verzion, I really do not want to bother with unlocking it to begin with. It was an utter nightmare to get locked, no matter what I tried it just would not lock for whatever reason.
So given all that, my question is, how hard or easy is it now to unlock and lock the bootloader?

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