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

Unlock international one x without htcdev

As the title says,
is this possible yet (or is anyone working on this??)
Haven't found anything about this (just some old topics from 2012.)
>edit: If not, is a root without htcdev possible?
- Matt

Nope, you need to unlock bootloader first to gain root access to your phone!
To do that, you need the unlock_code.bin file from htcdev.com
I don't think it's possible to do it any other way

I'm not able to unlock from HTCdev.com
vin4yak said:
Nope, you need to unlock bootloader first to gain root access to your phone!
To do that, you need the unlock_code.bin file from htcdev.com
I don't think it's possible to do it any other way
Click to expand...
Click to collapse
I don't know what is the problem but I'm not getting the key while unlocking the phone.I have unlocked several devices in past 2 yrs & experienced enough to understand what i'm doing.
Belive me I've tried every method they've given,even the tool for htc did not work.My s3,note 2 , previous nexus s ,galaxy s2,optimus all the devices i've unlocked & used custom roms..but not this one

[Q] Is there a way to unlock the bootloader while rooted without wiping?

I know it's possible on Nexus devices using an app like this one.
Is it possible on the HTC One X?
The reason I want this is to prevent others from accessing my information if my phone is stolen (the screen lock is useless if the attacker knows how to enter recovery mode and extract the information directly).
Thank you!!

Nuwanda612 said:
I know it's possible on Nexus devices using an app like this one.
Is it possible on the HTC One X?
The reason I want this is to prevent others from accessing my information if my phone is stolen (the screen lock is useless if the attacker knows how to enter recovery mode and extract the information directly).
Thank you!!
Click to expand...
Click to collapse
As far as am concerned, i don't think the bootloader can be looked with a password. the phone can be wiped while in bootloader mode

aromerblz said:
As far as am concerned, i don't think the bootloader can be looked with a password. the phone can be wiped while in bootloader mode
Click to expand...
Click to collapse
I didn't mean locking the bootloader with a password. I meant locking it in the same that it's locked when you buy the phone.
What I need is a way to unlock the bootloader without wiping. On Nexus devices it's possible by using the app I linked (though you need root for it to work). I was wondering if there was an app like that one for HTC phones, or an adb command, or anything that would allow me to to unlock the bootloader without wiping. I know it's not possible without root, but maybe there is a way on a rooted phone.

Nuwanda612 said:
I didn't mean locking the bootloader with a password. I meant locking it in the same that it's locked when you buy the phone.
What I need is a way to unlock the bootloader without wiping. On Nexus devices it's possible by using the app I linked (though you need root for it to work). I was wondering if there was an app like that one for HTC phones, or an adb command, or anything that would allow me to to unlock the bootloader without wiping. I know it's not possible without root, but maybe there is a way on a rooted phone.
Click to expand...
Click to collapse
The only way HTC allows to unlock is via HTCdev.com and that will wipe the phone.

Rooting HTC 816?

Hey Guys,
I am new to HTC, coz I was using a Sony Xperia Z earlier.
So now I have a HTC 816 (4G version), just want to know a way I can ROOT the phone. I have seen a guide which states how to do it, but it says to unlock the bootloader. Is there a way I can root the phone without unlocking the bootloader? Coz since I have bought this like last week, I dont wanna unlock it yet.
And also wanna know, how I can find the model no. of my phone. Like "a5_ul" etc.
Your help is really appreciated :angel:

That guide is the only one available, and you can't root your phone without unlocking your bootloader, there's just no way sorry.
Also you most likely have the a5_ul. If your on Virgin Mobile though it's the a5_chl.
To find out for sure boot into Hboot, and it will say it on that screen.

FoxyDrew said:
That guide is the only one available, and you can't root your phone without unlocking your bootloader, there's just no way sorry.
Also you most likely have the a5_ul. If your on Virgin Mobile though it's the a5_chl.
To find out for sure boot into Hboot, and it will say it on that screen.
Click to expand...
Click to collapse
my model is not from Virgin Mobile, its just the normal version, not from any carrier.
how do I boot in to Hboot? Sorry I am a noob at this

!!~spearhead~!! said:
my model is not from Virgin Mobile, its just the normal version, not from any carrier.
how do I boot in to Hboot? Sorry I am a noob at this
Click to expand...
Click to collapse
Google is your friend buddy.
You have the a5_ul.

!!~spearhead~!! said:
Hey Guys,
I am new to HTC, coz I was using a Sony Xperia Z earlier.
So now I have a HTC 816 (4G version), just want to know a way I can ROOT the phone. I have seen a guide which states how to do it, but it says to unlock the bootloader. Is there a way I can root the phone without unlocking the bootloader? Coz since I have bought this like last week, I dont wanna unlock it yet.
And also wanna know, how I can find the model no. of my phone. Like "a5_ul" etc.
Your help is really appreciated :angel:
Click to expand...
Click to collapse
You can use this YouTube guide.
http://youtu.be/vhUBLhdgSPU
Sent from my 710C using XDA Free mobile app

Unlock bootloader important? to Convert US Unlocked to Verizon Variant with Volte

is it necessary to unlock the bootloader to convert the unlocked version to Verizon with volte
can I only s-off, I am running 6..01 android
while keeping the bootloader locked, can I also reverse to stock later
Thank you very much

ahgahg said:
is it necessary to unlock the bootloader to convert the unlocked version to Verizon with volte
can I only s-off, I am running 6..01 android
while keeping the bootloader locked, can I also reverse to stock later
Thank you very much
Click to expand...
Click to collapse
No need to unlock bootloader. Sunshine has the option to keep bootloader locked and s-off. Since you're on Android 6, Sunshine will temproot your phone and set it to s-off without unlocking your bootloader

donkeykong1 said:
No need to unlock bootloader. Sunshine has the option to keep bootloader locked and s-off. Since you're on Android 6, Sunshine will temproot your phone and set it to s-off without unlocking your bootloader
Click to expand...
Click to collapse
Thank you for answering
I have another quick question.
How do you unroot the phone without leaving a trace of root?

ahgahg said:
Thank you for answering
I have another quick question.
How do you unroot the phone without leaving a trace of root?
Click to expand...
Click to collapse
Flash a RUU. Easy as that [emoji6]

donkeykong1 said:
Flash a RUU. Easy as that [emoji6]
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Click to collapse
Many Thanks to you,
I figured it might leave a trace , it happened with Samsung S4 active, where resetting the phone did not get of the root, factory reset, I can't seem to remember if I put the new odin

ahgahg said:
Many Thanks to you,
I figured it might leave a trace , it happened with Samsung S4 active, where resetting the phone did not get of the root, factory reset, I can't seem to remember if I put the new odin
Click to expand...
Click to collapse
HTC is better than Samsung in that regard too [emoji1]

donkeykong1 said:
HTC is better than Samsung in that regard too [emoji1]
Click to expand...
Click to collapse
How can I create backup or mirror mage of everything before making changes

ahgahg said:
How can I create backup or mirror mage of everything before making changes
Click to expand...
Click to collapse
Well, you need custom recovery to make a backup. I really can't remember if Sunshine delets everything on your phone or not. I would advise you to look up Sunshine s-off for clarification on that. If it doesn't, you're good to go. Just install TWRP, and backup everything