Develop Bugs

How to Unroot/Return to Stock

Screens developed a dead pixel and I need to return it (im presuming they''l take it back)
How do I unroot it and return it to how it was so I can take it back to the shop?

Stretlow said:
Screens developed a dead pixel and I need to return it (im presuming they''l take it back)
How do I unroot it and return it to how it was so I can take it back to the shop?
Click to expand...
Click to collapse
Check your warrant terms. Most probably if the dead pixel is not a result of rooting/installing 3rd party software then your warranty is valid for this issue.

mike1986. said:
Check your warrant terms. Most probably if the dead pixel is not a result of rooting/installing 3rd party software then your warranty is valid for this issue.
Click to expand...
Click to collapse
I've been issued a fault code from phones4u for exchange I havent really changed anything barring rooting it, The only thing is when you switch it on when its unlocked there is an unlocked padlock icon on the spalsh screen
Do you think they'll check/ be bothered?

Download Titanium, remove superuser, then "fastboot oem lock"
I think that should work, then just factory reset to top it off

Stretlow said:
I've been issued a fault code from phones4u for exchange I havent really changed anything barring rooting it, The only thing is when you switch it on when its unlocked there is an unlocked padlock icon on the spalsh screen
Do you think they'll check/ be bothered?
Click to expand...
Click to collapse
fastboot oem lock will lock the bootloader back and remove the padlock from the splash screen.

bfroehlich said:
fastboot oem lock will lock the bootloader back and remove the padlock from the splash screen.
Click to expand...
Click to collapse
Thanks for that.
If I do a factory reset it wont brick or anything will it?

Stretlow said:
Thanks for that.
If I do a factory reset it wont brick or anything will it?
Click to expand...
Click to collapse
No, it wont

mike1986. said:
No, it wont
Click to expand...
Click to collapse
brilliant, they've given me a fault code from head office so shouldn't be something I shouldnt be able to blag

Ok so I did a factory reset and locked to bootloader and went to phones4u you...
all were willing to exchange it.
1 was closing.
1 didnt have any
1 had one and had been opened as a show phone so I refused it
and the final one had 3... all opened..
Why do they feel the need to open all the boxes ?

Finally got it exchanged this morning for a brand spanker.
Unlocked, Rooted
Just loading my music
Phew

Check if bootloader was tampered with before buying a used phone

Hey guys,
I am just about to buy a used LG G4, but I do not want to buy it if the bootloader was already tampered with.
Is there a quick way without any computer to verify that is it still locked?
If that is the case there should be no (normal people) way to install any malicious software that survives a factory reset, should it?
Kind regards,
Rn

regsnerven said:
Hey guys,
I am just about to buy a used LG G4, but I do not want to buy it if the bootloader was already tampered with.
Is there a quick way without any computer to verify that is it still locked?
If that is the case there should be no (normal people) way to install any malicious software that survives a factory reset, should it?
Kind regards,
Rn
Click to expand...
Click to collapse
When you turn on the phone,if the bootloader is unlocked,in the upper left part of the screen will be written "Bootloader is unlocked!"
Otherwise,you'll see just the Lg logo
Sent from my LG G4

nice : )
So a normal boot would be enough to check. Pretty neat, at least in this case ^^ Not so much when you bring it to the store

Huawei Watch 1st Gen Brick

Hello all,
I'm thinking of buying a bricked Huawei Watch and reflashing it.
Seller says it got bricked during an update and can't start but it can enter the fastboot menu.
My question is- is there a chance it can't be unbricked or it can be fixed for sure? I have 0 experience with smartwatches so I'd appreciate any information on the subject

Anyone?

In general, if you can fastboot/bootloader it you can flash a recovery, and with a recovery you can ADB sideload a ROM.
Obviously I have no way of knowing what you might get buying a "bricked" one...so don't take that as any kind of guarantee.

yoan.boychev said:
Hello all,
I'm thinking of buying a bricked Huawei Watch and reflashing it.
Seller says it got bricked during an update and can't start but it can enter the fastboot menu.
My question is- is there a chance it can't be unbricked or it can be fixed for sure? I have 0 experience with smartwatches so I'd appreciate any information on the subject
Click to expand...
Click to collapse
If the seller is being honest and the only thing that went wrong was a bad OTA, you should be able to resurrect it fairly easily.
Actually, now that I think about it, the bootloader on that watch is still locked. Have the seller unlock it and show proof that it worked. If the bootloader cannot be unlocked for whatever reason, the watch will be significantly harder, if not impossible, to resurrect.

TheSt33v said:
If the seller is being honest and the only thing that went wrong was a bad OTA, you should be able to resurrect it fairly easily.
Actually, now that I think about it, the bootloader on that watch is still locked. Have the seller unlock it and show proof that it worked. If the bootloader cannot be unlocked for whatever reason, the watch will be significantly harder, if not impossible, to resurrect.
Click to expand...
Click to collapse
If someone is selling a failed OTA as a bricked device, I doubt they know HOW to unlock a bootloader.

Tigerlight said:
If someone is selling a failed OTA as a bricked device, I doubt they know HOW to unlock a bootloader.
Click to expand...
Click to collapse
You're assuming that the seller isn't lying. If the seller knows how to put the thing into bootloader mode, and he does, I think it's a pretty good bet that he also knows how to unlock and lock the bootloader.
Honestly, I don't buy the whole failed OTA story. I think the dude messed around with the watch without knowing what he was doing, bricked it, and is now trying to minimize his losses.

TheSt33v said:
You're assuming that the seller isn't lying. If the seller knows how to put the thing into bootloader mode, and he does, I think it's a pretty good bet that he also knows how to unlock and lock the bootloader.
Honestly, I don't buy the whole failed OTA story. I think the dude messed around with the watch without knowing what he was doing, bricked it, and is now trying to minimize his losses.
Click to expand...
Click to collapse
Fair points. I think the lesson here is ALWAYS be cautious of sold as bricked, obviously.
But I still feel the point stands that IF it can get to bootloader it is generally recoverable barring actual hardware failure.

Tigerlight said:
Fair points. I think the lesson here is ALWAYS be cautious of sold as bricked, obviously.
But I still feel the point stands that IF it can get to bootloader it is generally recoverable barring actual hardware failure.
Click to expand...
Click to collapse
You're probably right. The only snag I can possibly think of would be if for some reason it could not wipe the device. Unlocking the bootloader triggers a wipe, and if the wipe doesn't happen the unlock might not happen. Also, if something is wrong with the USB connection, bootloader unlock might be impossible for that reason.

Your Device Has Failed Verification And May Not Work Properly

I recently got a 7x from ebay.co.uk. I noticed the opened box states the model is BND-AL10 (Chinese) but in the phone settings it's a BND-L21 (International). S/N and IMEI match.
Out of curiosity I tried Huawei Firmware Finder for Oreo. I used DNS method, picked the top one as seen here (verified): hxxp://pro-teammt.ru/firmware-database/?firmware_model=BND-L21C432&firmware_page=0
It downloaded like 20 patches totalling around 8+GB and then asked to reboot...and failed.
My phone still works but I now get this during boot:
"your device has failed verification and may not work properly.
1) Press power key to continue.
2) Press volume up key up to 3 seconds to enter erecovery to restore your device.
3) your device will stop,start if there is not operation.
I tried Huawei eRecovery: 'Getting package info failed'
What should I do? Noob.

Brent.M said:
I recently got a 7x from ebay.co.uk. I noticed the opened box states the model is BND-AL10 (Chinese) but in the phone settings it's a BND-L21 (International). S/N and IMEI match.
Out of curiosity I tried Huawei Firmware Finder for Oreo. I used DNS method, picked the top one as seen here (verified): hxxp://pro-teammt.ru/firmware-database/?firmware_model=BND-L21C432&firmware_page=0
It downloaded like 20 patches totalling around 8+GB and then asked to reboot...and failed.
My phone still works but I now get this during boot:
"your device has failed verification and may not work properly.
1) Press power key to continue.
2) Press volume up key up to 3 seconds to enter erecovery to restore your device.
3) your device will stop,start if there is not operation.
I tried Huawei eRecovery: 'Getting package info failed'
What should I do? Noob.
Click to expand...
Click to collapse
erecovey fails for everybody. dont know why.
the message you see is normal if bootloader is unlocked. You should have had that same message first time you turned it on too.
Attempting to use firmware finder to apply updates , is not possible to unlock bootloader, so it had to have already been that way.

mrmazak said:
erecovey fails for everybody. dont know why.
the message you see is normal if bootloader is unlocked. You should have had that same message first time you turned it on too.
Attempting to use firmware finder to apply updates , is not possible to unlock bootloader, so it had to have already been that way.
Click to expand...
Click to collapse
Thanks for the reply. I definitely did not have this message before trying Firmware Finder. I have not done anything else to the phone.

Brent.M said:
Thanks for the reply. I definitely did not have this message before trying Firmware Finder. I have not done anything else to the phone.
Click to expand...
Click to collapse
This is known message resulting from of having boooader unlocked. Few people have been trying to make it not show , but no one has made it public if they have been successful at hiding it.
Now you got that phone (used, I assume ).From eBay. Perhaps the previous owner found some way. And attempting to update made his "hack" undo. Don't really know.
You can check if bootloader lock status to be sure if it is unlocked or not.

mrmazak said:
This is known message resulting from of having boooader unlocked. Few people have been trying to make it not show , but no one has made it public if they have been successful at hiding it.
Now you got that phone (used, I assume ).From eBay. Perhaps the previous owner found some way. And attempting to update made his "hack" undo. Don't really know.
You can check if bootloader lock status to be sure if it is unlocked or not.
Click to expand...
Click to collapse
In FASTBOOT&RESCUE MODE:
PHONE Unlocked
FRP Lock
This phone is sold as brand new boxed. However, like I said it was opened. I wasn't expecting to get a Chinese version that has been flashed. I should have just paid a bit more from Amazon. Though, I'm not fussed as long as I get updates and it's stable.
https://www.ebay.co.uk/itm/Huawei-H...var=541715986486&_trksid=p2057872.m2749.l2649
The 'your device has failed verification and may not work properly.' screen also says:
To learn more,visit:
http://zh.ui.vmail.com/emotiondownload.php?mod=restore

Brent.M said:
In FASTBOOT&RESCUE MODE:
PHONE Unlocked
FRP Lock
This phone is sold as brand new boxed. However, like I said it was opened. I wasn't expecting to get a Chinese version that has been flashed. I should have just paid a bit more from Amazon. Though, I'm not fussed as long as I get updates and it's stable.
ebayDOTcoDOTuk/itm/Huawei-Honor-7X-5-93-Octa-Core-16-0MP-32-64-128g-Android-7-0-OTA-Smartphone/332608261102?ssPageName=STRK%3AMEBIDX%3AIT&var=541715986486&_trksid=p2057872.m2749.l2649
The 'your device has failed verification and may not work properly.' screen also says:
To learn more,visit:
http://zh.ui.vmail.com/emotiondownload.php?mod=restore
Click to expand...
Click to collapse
that status is very bad.
that combination of unlocked bootloader and locked frp is often hard if not impossible to get past.
unless you can access developer options menu and enable "enable oem unlock" menu option.

mrmazak said:
that status is very bad.
that combination of unlocked bootloader and locked frp is often hard if not impossible to get past.
unless you can access developer options menu and enable "enable oem unlock" menu option.
Click to expand...
Click to collapse
PHONE Unlocked
FRP Unlocked
I read that "Huawei is no longer offering bootloader unlock code in 60 days." I tried to request a unlock but I get just get
"If you have any questions about the unlock code application, please contact us."
Nothing happens. I contacted them.
Will I ever need that unlock code given that it is already unlocked? Should I return/refund the phone and buy from Amazon UK or am I wasting my time, since I'll likely be requesting a unlock code and possibly be playing with roms in a few years. I keep phones as long as possible and a basic user which is why I have little knowledge with them.

Brent.M said:
PHONE Unlocked
FRP Unlocked
I read that "Huawei is no longer offering bootloader unlock code in 60 days." I tried to request a unlock but I get just get
"If you have any questions about the unlock code application, please contact us."
Nothing happens. I contacted them.
Will I ever need that unlock code given that it is already unlocked? Should I return/refund the phone and buy from Amazon UK or am I wasting my time, since I'll likely be requesting a unlock code and possibly be playing with roms in a few years. I keep phones as long as possible and a basic user which is why I have little knowledge with them.
Click to expand...
Click to collapse
I would try and get a refund (if you bought via PayPal I think you may get some kind of support).
You can get the 7x from UK retailers for as low as £210. But the current Amazon price of £228 is not bad.
Do you browse HotUKDeals? Always check there before buying anything in the UK or from China.
Cracking deal for a China sourced redmi note 5 from tomorrow:
https://www.hotukdeals.com/deals/sa...900mah-aliexpress-xiaomi-online-store-2948784
Search for 7x deals.
Cheers
Sent from my BND-L21 using Tapatalk

sipart said:
I would try and get a refund (if you bought via PayPal I think you may get some kind of support).
You can get the 7x from UK retailers for as low as £210. But the current Amazon price of £228 is not bad.
Do you browse HotUKDeals? Always check there before buying anything in the UK or from China.
Cracking deal for a China sourced redmi note 5 from tomorrow:
https://www.hotukdeals.com/deals/sa...900mah-aliexpress-xiaomi-online-store-2948784
Search for 7x deals.
Cheers
Sent from my BND-L21 using Tapatalk
Click to expand...
Click to collapse
Yes, PayPal. I contacted the seller on the matter. Will see what they say. After using Firmware Finder correctly I updated to 8.0 Oero. The message during boot also went away... I'll certainly check out hotdeals. But if the phone works should I bother?

Brent.M said:
Yes, PayPal. I contacted the seller on the matter. Will see what they say. After using Firmware Finder correctly I updated to 8.0 Oero. The message during boot also went away... I'll certainly check out hotdeals. But if the phone works should I bother?
Click to expand...
Click to collapse
i think it is a little suspicious on the bootloader getting unlocked like that, but if its working , and you flashed full ota, then maybe give it a try.
¯\_(ツ)_/¯
¯\_('.')_/¯
`

mrmazak said:
i think it is a little suspicious on the bootloader getting unlocked like that, but if its working , and you flashed full ota, then maybe give it a try.
¯\_(ツ)_/¯
¯\_('.')_/¯
`
Click to expand...
Click to collapse
"Dear buyer,
Sorry for bring you any inconvenience and disappointment, the reason we have opened the package is because we need to download a multiplied language system to the phone before sent it out, they it can be use normal in this country. And for the model no, that's a normal phenomenon after rooting the phone.
Anyway, is it affect your use? what can us do for you now?"

Brent.M said:
Yes, PayPal. I contacted the seller on the matter. Will see what they say. After using Firmware Finder correctly I updated to 8.0 Oero. The message during boot also went away... I'll certainly check out hotdeals. But if the phone works should I bother?
Click to expand...
Click to collapse
Oh yes if you got it working no point. Enjoy the 7x
Sent from my BND-L21 using Tapatalk

Since the bootloader is unlocked I won't need to request a unlock code or ever need that code? As I did read Huawei is no longer offering bootloader soon.

Bootloader unlock and relock
deleted, posted on a new thread

Hi. I'm having an issue with this new phone. It's Wowi Ultra SQ766. On start up interface the 'Red State' notice comes up, goes off for 5 seconds and comes back on. The full message states:
'Red State
Your device has failed verification and may not work properly.
Please download boot image with correct signature or disable verified boot.
Your device will reboot in 5 seconds'.
Could you please help me out with a solution or fix for this.
I'd be happy if you would help.
Awaiting your reply.
Noob

Stuck - Phone won't go past Google screen

Earlier today I installed Magisk, but then found that some apps I frequently use (Samsung Pay being one of them) were no longer working so I decided to revert back to Android O, remove Magisk etc. and basically go back to stock. I flashed the factory images using fastboot, then sent the command to lock the bootloader. Strangely when I tried "fastboot flashing lock_critical" it told me the bootloader was locked, but when I entered "fastboot flashing lock" it went through and restarted.
This is where I get stuck, when the phone boots it shows a message about the device being corrupt. If I press the power button, it just then goes to the white screen with Google in the middle and does nothing else.
What should I do to get my phone back to factory specs?

naiku said:
Earlier today I installed Magisk, but then found that some apps I frequently use (Samsung Pay being one of them) were no longer working so I decided to revert back to Android O, remove Magisk etc. and basically go back to stock. I flashed the factory images using fastboot, then sent the command to lock the bootloader. Strangely when I tried "fastboot flashing lock_critical" it told me the bootloader was locked, but when I entered "fastboot flashing lock" it went through and restarted.
This is where I get stuck, when the phone boots it shows a message about the device being corrupt. If I press the power button, it just then goes to the white screen with Google in the middle and does nothing else.
What should I do to get my phone back to factory specs?
Click to expand...
Click to collapse
Why on earth did you lock the bootloader? But oh well. Try unlocking it again, then fastboot 8.1 again. No need to worry about data anymore since you've been wiped! ?

I locked it again as Samsung Pay kept crashing saying I had a modified system, since I had already flashed back to factory 8.1 I assumed that was the reason why, hence locking the bootloader. I was actually in the middle of flashing 8.1 again when you replied, did exactly that, unlocked bootloader, flash-all in fastboot and I am back to setting it up again.
Going to leave the bootloader unlocked for now, but I do want to be able to use Samsung Pay so if that means locking it will likely go through the whole ordeal again at some point!!

naiku said:
I locked it again as Samsung Pay kept crashing saying I had a modified system, since I had already flashed back to factory 8.1 I assumed that was the reason why, hence locking the bootloader. I was actually in the middle of flashing 8.1 again when you replied, did exactly that, unlocked bootloader, flash-all in fastboot and I am back to setting it up again.
Going to leave the bootloader unlocked for now, but I do want to be able to use Samsung Pay so if that means locking it will likely go through the whole ordeal again at some point!!
Click to expand...
Click to collapse
Well glad your up and running. Outa curiosity, did you run the fastboot flashing unlock_critical when you first unlocked the bootloader? ?

Yep, in fact I think I only ran the unlock critical. Did both this time, oddly though unlock critical did nothing initially, so did just unlock, then tried unlock critical again and it reported being unlocked.
In the middle of setting everything up now, Samsung Pay working with the unlocked bootloader. Must have been something with root, even after removing it, that screwed it up previously.

naiku said:
Yep, in fact I think I only ran the unlock critical. Did both this time, oddly though unlock critical did nothing initially, so did just unlock, then tried unlock critical again and it reported being unlocked.
In the middle of setting everything up now, Samsung Pay working with the unlocked bootloader. Must have been something with root, even after removing it, that screwed it up previously.
Click to expand...
Click to collapse
Yep, root is usually always the culprit with pay type apps if magisk hide isn't working properly. But hey, at least your happy now ?

Yup, I had tried magisk hide and it did not work, so (wrongly) assumed the bootloader unlocked was the problem.
Thankfully all good now, was definitely a little worried earlier this evening!

naiku said:
Yep, in fact I think I only ran the unlock critical. Did both this time, oddly though unlock critical did nothing initially, so did just unlock, then tried unlock critical again and it reported being unlocked.
In the middle of setting everything up now, Samsung Pay working with the unlocked bootloader. Must have been something with root, even after removing it, that screwed it up previously.
Click to expand...
Click to collapse
How did you get SP to work on a non Samsung phone? Does MST work or does that take special hardware?
Sent from my SM-T820 using Tapatalk

dew.man said:
How did you get SP to work on a non Samsung phone? Does MST work or does that take special hardware?
Sent from my SM-T820 using Tapatalk
Click to expand...
Click to collapse
Pay works fine with no issues, I did nothing other than install the app while on O, then it still works on P DP3.
Not sure what MST is, so can't help there.

Are you sure you're talking about SAMSUNG pay, and not Android Pay? As far as I know (and just checked again), it' s not available from google, only from the galaxy store.
MST is the (supposedly) proprietary Samsung technology that allows you to pay with your phone at older terminals that do not have NFC. From what I understand, they have a way to communicate with magnetic card readers enabling their solution to work pretty much everywhere.

dew.man said:
Are you sure you're talking about SAMSUNG pay, and not Android Pay? As far as I know (and just checked again), it' s not available from google, only from the galaxy store.
MST is the (supposedly) proprietary Samsung technology that allows you to pay with your phone at older terminals that do not have NFC. From what I understand, they have a way to communicate with magnetic card readers enabling their solution to work pretty much everywhere.
Click to expand...
Click to collapse
100% sure it's Samsung Pay. I will say though that I use it on my watch, not the phone itself. Had to double check though, looks like we are both right. I don't have Samsung Pay on my phone as its own app, but it is used as part of the Gear app in order to set it up on my watch. During set up with the phone rooted, the watch Samsung Pay setup, on the phone, was crashing. Sorry for any confusion.
Gotta say I am glad the watch works with it. I would not have been happy if I had lost that functionality switching from the S7 Edge to the Pixel.