Develop Bugs

[Q] R800a can not OTA update or enter fastboot, root problems? mode.

I recently purchased a R800 from someone on Craigslist. The phone is already rooted, permanantly I think since it is rooted after doing a factory restore. It is not sim locked, I believe its factory unlocked.
I tried to do the OTA update, which downloads, but fails to install. It appears to get about 3/4 of the way done, reboots and gives me an "update failed" message.
I wanted to unlock the boot loader, I got the unlock key from SE. I must of tried 10 times to get the phone to boot into fastboot mode, it NEVER does it. It simply boots up normally. I even got an app that makes it easy to reboot into restore or fastboot modes (just click an option and it reboots), however just like before the phone simply reboots normally. I even did a factory restore prior to trying the update... no go.
Should I try to remove the root access? Is this what is giving me all the problems. I was able to successfully install root explorer and titanium backup and both of those programs worked fine.
R800i, Android 2.3.3, Kernel 2.6.32.9-perf [email protected] #1, Build number 3.0.1.A.0.145
Edit: Title should be "Can not OTA or enter fastboot mode, root problems?"

Is your phone sim locked? Sim locked phones need to be unlocked before able to unlock bootloader or fast load. After you unlock bootloader make sure you never ota update.
Sent from my XPlay using XDA App.

Your phone has a locked bootloader and a factory lockout on fastboot.
Best advice to you is flash the r800a world generic 2.3.2 root it with gingerbreak then ota update. Use a program called wontanserver as its super easy.
Dont get anyone to remove your factory locks on fastboot until you read tons of threads on these fourms from the last couple months.

Ok, lets see....
Deoxlar said:
"Is your phone sim locked? Sim locked phones need to be unlocked before able to unlock bootloader or fast load. After you unlock bootloader make sure you never ota update."
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Click to collapse
My phone is the R800a. It was my understanding that this phone was never locked (factory unlocked). It came in an official Sony Ericsson box and has no carrier branding on it what-so-ever. It was not purchased through a carrier. It does have a weird stock data APN called "Telekila"?!?!?
sdlaurin said:
"Your phone has a locked bootloader and a factory lockout on fastboot.
Best advice to you is flash the r800a world generic 2.3.2 root it with gingerbreak then ota update. Use a program called wontanserver as its super easy.
Dont get anyone to remove your factory locks on fastboot until you read tons of threads on these fourms from the last couple months."
Click to expand...
Click to collapse
Doesn't wontonserver require credits to run? How expensive does this get?
I didn't know the phone could have a factory lock on the bootloader. I did go to the SE website where you get the unlock key and it was successful in giving me a key... Well I shouldn't exactly say "successful", it did give me a key code to use if and when I can unlock the bootloader, weather or not that code is actually legit remains to be seen. I'm a bit skeptical now since you said the phone is bootloader locked from the factory. I though SE was allowing their phones to be unlocked. I recently unlocked my Motorola Atrix and was expecting to do the same with this phone.
Thank you guys for the advice. I love this phone so far but I can't wait to get a custom rom on it

It uses credits but they are free.
There are currently 2 gentlemen on these forums that can remove your fastboot locks and unlock your bootloader.
Have a look for thier threads on this matter

I would like to have this done now, so gentlemen, whomever is able to do this please message me and we can work something out. Im dieing to get a new rom on this awesome phone/game console.
Sent from my R800i using xda premium

If you need help with unlocking your phone contact Alejandrissimo he does Unlocks

I flashed the r800a world generic 2.3.2 rooted it with gingerbreak then ota updated.I get the same thing as DMpire , reboots and gives me an "update failed" message.
Is this because I removed some of the stock apps that came on the phone after it was rooted? Anyone know about this?
Does it matter if the SD card is mounted or not?

Removing stock apps then trying to ota isnt going to happen. Reflash, root, ota, then remove your stock apps

Is there any easy way to do this? can I reflash it as it has a locked bootloader, or do I have to get the bootloader unlocked?

JDMpire said:
I would like to have this done now, so gentlemen, whomever is able to do this please message me and we can work something out. Im dieing to get a new rom on this awesome phone/game console.
Sent from my R800i using xda premium
Click to expand...
Click to collapse
Christian6809 said:
Is there any easy way to do this? can I reflash it as it has a locked bootloader, or do I have to get the bootloader unlocked?
Click to expand...
Click to collapse
Add me to gtalk pals: alejandrissimo[at]gmail.com

Google wontanserver its free

[Q] how to unbrick xperia play

i unlocked bootloader on xperia play since then my phone does not ready sim card or memory card is there a way to lock the bootloader again or is my phone just completely worthless now

Check the Dev section I'm pretty sure there is a thread on locking bootloader again
Sent from my R800a using XDA App

teeto88 said:
i unlocked bootloader on xperia play since then my phone does not ready sim card or memory card is there a way to lock the bootloader again or is my phone just completely worthless now
Click to expand...
Click to collapse
Had a similar problem..
Flash the latest firmware using flashtool and that should solve it...

Problem with my Xperia Play
Hi, I have an Xperia Play that I have unlocked the bootloader on and installed a custom kernel. Everything worked just fine until weeks after I did these things the screen suddenly went black and the phone turned off. I have not been able to start it since it happend, when I try to boot the phone it will just vibrate and then nothing, the screen stays black. Even if it does not boot the computer recognizes it and I can flash roms with flashtools etc. I have tried alot of different roms and returned to stock kernel, I have even re-locked the bootloader and made a clean update with SEUS but without success, nothing happens on the screen. Have anyone had the same issue? Thanks! /David

brick
hi, I just got a xperia play from a friend of mine. He rooted it and updated and it probably got bricked by the update. It doesn't do anything. When you push power it just buzzes. Now I don't have really that much information. but I think he unlocked the bootloader and flashed to root.
now for wat I have tried. I searched for solutions for this problem. That's when I came upon the flashtool. I tried flashing it simply with the generic_uk firmware. But it didn't do anything. Further research landed me upon a FOTAUnbrick tool. I read some of the information but I didn't really get it (most of the times I do know what i'm doing). So in my "nothing to lose spirit" i just tried it and guess what ? nothing. Now I know this is really vague and probably doesn't have a solution. But I'm keeping my hopes up for someone to bust this bugger.

Unlocking bootloader killed my C1905, help please!...

Hi everyone
I wanted to try going from the stock Android 4.3 to cm12.1.
My phone was bootloader locked but unlocking was allowed.
So I followed the process on the sony website and got the unlock code and entered it.
Phone then refused to restart, stuck on booting screen.
Eventually using Flashtool, I found a stock rom and reflashed that, still wouldn't boot. Then I relocked the bootloader and now it boots again.
However, it now says sim card is invalid and refuses to let me join the phone network (I'm in Malta, using the Go network).
Also, I'm now unable to reunlock the bootloader as it says failed when I try doing so using fastboot and says it cannot be officially unlocked when using flashtool. Worryingly for me, in settings it now says "no" for unlock allowed (it used to say "Yes").
So now, I've got a phone that otherwise works normally again except that it doesn't actually work as a mobile phone! Please help me someone as Sony have already refused to do anything to help, their customer (dis)service people simply point out that once you unlock the bootloader - even if that itself causes the problem - they will no longer help you. Cheers, thanks Sony, no way will I ever buy any product from you ever again!
What a crap day...

andrewh1973 said:
Hi everyone
I wanted to try going from the stock Android 4.3 to cm12.1.
My phone was bootloader locked but unlocking was allowed.
So I followed the process on the sony website and got the unlock code and entered it.
Phone then refused to restart, stuck on booting screen.
Eventually using Flashtool, I found a stock rom and reflashed that, still wouldn't boot. Then I relocked the bootloader and now it boots again.
However, it now says sim card is invalid and refuses to let me join the phone network (I'm in Malta, using the Go network).
Also, I'm now unable to reunlock the bootloader as it says failed when I try doing so using fastboot and says it cannot be officially unlocked when using flashtool. Worryingly for me, in settings it now says "no" for unlock allowed (it used to say "Yes").
So now, I've got a phone that otherwise works normally again except that it doesn't actually work as a mobile phone! Please help me someone as Sony have already refused to do anything to help, their customer (dis)service people simply point out that once you unlock the bootloader - even if that itself causes the problem - they will no longer help you. Cheers, thanks Sony, no way will I ever buy any product from you ever again!
What a crap day...
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Click to collapse
i think you have missing something after unlock bootloader, and you can't give any wrong or false to sony. because you're do this with your vault and you're is vault your warranty. and sony have give you a warn sign before do this, and you accepted because you do it.
so no any vendor problem if you fail or your device is bricked.
after unlock bootloader, you need to reflash your stock rom again and do a full wipe data and cache from flashtool before flash any rom. after wipe and flash you can check your device is boot up perfectly without any problem. you only missed that. try to reunlock if still can, but try to unlock your bootloader using flashtool too.

Nicklas Van Dam said:
i think you have missing something after unlock bootloader, and you can't give any wrong or false to sony. because you're do this with your vault and you're is vault your warranty. and sony have give you a warn sign before do this, and you accepted because you do it.
so no any vendor problem if you fail or your device is bricked.
after unlock bootloader, you need to reflash your stock rom again and do a full wipe data and cache from flashtool before flash any rom. after wipe and flash you can check your device is boot up perfectly without any problem. you only missed that. try to reunlock if still can, but try to unlock your bootloader using flashtool too.
Click to expand...
Click to collapse
Well on Sony's site it also says that any repair will be chargeable once you do unlock, so I would have expected them to have done something at a charge not to totally refuse to help at all. I accept what you say but I DID follow the instructions exactly, I unlocked the bootloader and rebooted it as instructed and from there it went wrong - refused to boot.
Anyway, I have tried several stock roms including even using the Sony tools and letting it do a "repair" reflash, all to no avail. "Sim Invalid" is what I'm left with and what I have noticed when flashing every stock rom with flashtool, what is missing from the "Wipe" list is cache, the only option there is "USERDATA". Is there something wrong with the flashtool perhaps?
Even when I relock the bootloader using flashtool (which I seem to need to do every time even after flashing a stock rom) it still seems to regard the phone as unlocked, or at least when you go the "BLU" screen it shows only the option to relock each time. Something has definitely screwed up here.
I got a UK stock rom via Xperifirm and used Flashtool to create the TFT from that. Still no joy. I'm assuming something is wrong with the sim lock, somehow, but how to fix this? I'm realising that reflashing stock roms doesn't totally return the phone to factory condition, so what am I missing here please? Is the phone totally stuffed now or is there still some way to repair it?

Ok so further to this, I just gone into service menu -> Sim lock and I see this:
[x] Network 0
[x] Network subset 0
[x] Service provider 0
[x] Corporate 0
[x] SIM 0
So is the phone locked or not? What does the x mean? The phone was previously fully sim unlocked as I bought it without a contract from Amazon. Is there a way to fix this please?

help me please
i have xperia m, after unlocking bootloader it stuck on bootlooping, i have not enable usb debugging...any way to fix it?

Weird bootloader behavior ... please help !!

Hello guys am basically a Noob when it comes to the new android 6.0+ security system that google included which changed the bootloader unlocking and rooting process a lil bit from the standert ( fastboot oem unlock ... fastboot flash twrp ... flash super su and voila )
let's get to my probleme with my nexus 5x when i unlocked the bootloader with the tool the device has to reboot but everytime i reboot i have to unlock my bootloader again the root works fine but the bootloader keeps getting locked everytime ... problem is that i messed with the boot img in order to disable forced encryption and now i can't flash stock because during the flashing the bootloader has to reboot and gets locked which make the flashing fails ... am on android nougat 7.0 if that matter and if someone have the 6.0.1 (mtc20k) boot image for noforce encrypte please share with me and thanks

You can update manually by flashing the different parts separately using fastboot commands. That way you can skip rebooting after flashing bootloadet
Skickat från min Nexus 5X via Tapatalk

I have the same problem. Bootloader gets relocked every time i reboot. Could not install cm14.1, i just get i bootloop (tried with latest twrp and vendor). Went back to stock with the seperate fastboot commands. It works but really annoying that the bootloader wont stay locked. It worked before i sent the phone to service (emmc problem) and got the motherboard changed. Is there a problem with the bootloader or is it a hardware problem?

Sounds like a HW problem, RMA it again.

RusherDude said:
Sounds like a HW problem, RMA it again.
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Click to collapse
Thanks!
Yeah thats what im thinking too. But what do i claim as the issue? Is a non unlockable bootloader a warranty issue? Bought it unlocked from a store.

frukten said:
Thanks!
Yeah thats what im thinking too. But what do i claim as the issue? Is a non unlockable bootloader a warranty issue? Bought it unlocked from a store.
Click to expand...
Click to collapse
Ask Google (you can open up a chat with them for example on https://support.google.com/nexus/answer/4582729?hl=en&ref_topic=6023296#contact=1 or other links), for me it's a clear issue, you have the right to unlock the bootloader, however not sure how to demonstrate a problem if you bought it on a store...

All phones that come back from service do so in that state. Seems it's a decision from LG. If you go to bootloader you'll probably see that is says "no rpmb" right after secure boot. This is what is causing the issue, from what I know it is because a certain portion is not flashed on the motherboard replacement
The same happend to me, e-mailed the service center asking why they did this but they never reply
Skickat från min Nexus 5X via Tapatalk

Bootloader unlock vs bootlop warranty

Hello,
is it worth to unlock the bl under warranty (till august) or recommended to keep it locked? I want to try custom roms and kernels but if i'll get a bootlop i can't relock it.
Please post your opinion, thanks

I could be wrong on this, but there are two assumptions you're making, that I believed the opposite to be true.
The first is that Google won't warranty the device is that the bootloader is unlocked. I thought they would?
The second is that a software bootloop can't be fixed. If the device is bootlooping because of a hardware issue, there's no hope. I was under the impression that a software glitch could be repaired by putting it in a firmware download mode, and fastboot flashing the whole system?

crazyates said:
I could be wrong on this, but there are two assumptions you're making, that I believed the opposite to be true.
The first is that Google won't warranty the device is that the bootloader is unlocked. I thought they would?
The second is that a software bootloop can't be fixed. If the device is bootlooping because of a hardware issue, there's no hope. I was under the impression that a software glitch could be repaired by putting it in a firmware download mode, and fastboot flashing the whole system?
Click to expand...
Click to collapse
I talked about the hw bootloop.
My question is : can I relock the bootloader if I get a hw bootlop? I know it will stuck at google logo but maybe the bl reachable...

If you have a hardware related bootloop you may be able to re-lock the bootloader, however the phone may be completely unresponsive (mine was completely unresponsive when I had the hw related bootloop). The phone also may respond for a bit then become unresponsive again.
Did you buy your device from Google? If so, they are not concerned about an unlocked bootloader (at least the two reps I talked to when both of my devices bootlooped said that it was not a problem and both of my devices have been replaced out of warranty).

beefynick said:
If you have a hardware related bootloop you may be able to re-lock the bootloader, however the phone may be completely unresponsive (mine was completely unresponsive when I had the hw related bootloop). The phone also may respond for a bit then become unresponsive again.
Did you buy your device from Google? If so, they are not concerned about an unlocked bootloader (at least the two reps I talked to when both of my devices bootlooped said that it was not a problem and both of my devices have been replaced out of warranty).
Click to expand...
Click to collapse
No, not from the Google

In reverse If you get bootloop you cannot unlock bootloader.
Sent from my Nexus 5X using Tapatalk

Duckscreen said:
In reverse If you get bootloop you cannot unlock bootloader.
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Click to collapse
I want to relock it. So sad i cant use a custom rom/kernel because off the fkin bootlop failure.

I am interested in this also. I was planing to buy new Nexus 5X now, but all bootloop thing is making me consider. I am not sure if it is worth to gamble. But as I see over forum, it is not like 50% of phones bootloops. It is a lot less percent.