Develop Bugs

[Q] Volume Down + Power = no bootloading screen?

Sprint Evo 4g Supersonic will not load my boot screen. Im not sure what is going on I do know that one of my phones is stock and the other is a rooted phone. What the hell is going on. Im not a noob to root FYI. I build gaming rigs and other computer related issues I can solve fairly easy. However, this is getting under my skin because I want to UNROOT so i can activate service on the one phone and then Root it again back to where I had it. The other phone that is Stock RUU sprint is having the same issue. For the love of God I just want to be able to unlock my stock and root! Awaiting a sound answer to my question and I do hope I posted this in the right catagory of the forums because I saw nothing of this issue for Supersonic RUU EVO 4G. Thanks!

So holding power and volume down at startup doesnt bring up the bootloader screen correct?
I know this may sound obvious, but power off the phone, pull out the battery, put it back in, then try again.

Did you make sure that Fastboot was disabled in your phone's Settings? Cuz that will keep it from booting into your bootloader
Sent from my EVO using xda app-developers app

You don't need to unroot to activate a phone.

Thanks for the suggestions I already had it off fastboot and I took the battery out and swapped with another one and it worked fine after. Its been a while since I messed with my phones technically.
Captain_Throwback said:
You don't need to unroot to activate a phone.
Click to expand...
Click to collapse
Captain,
other then the obvious "thanks" Sprint is the one that messed my rooted phones network when changing phone numbers. if I remember correctly its stuck on "Hands Free Activation" continually having the icon circle and "contacting the network" times out and I get code 1012. I can cancel this and use the phone just no service. I went back to a stock rom to do this in order to add a line and switch numbers on both evo 4g supersonics. the rooted failed connection and sprint stock is now my phone. I am going to root this one since it has hboot 2.16 but I have to downgrade windows 8 to 7 ultimate first. NOTHING is compatible with that OS... yet anyways. I will check out your methods as well. I was looking for a forum that would be able to explaine how to activate a rooted phone. Ill get back to you if I have an issue! Thanks

Sent from my PC36100 using xda app-developers app

Capt. Throwback,
If you wouldn't mind please email me specifically how to bring my phone in. Unless OTA ROOT APP works I need to know in order to restore the phone to its line. In forum mail is ok to reach me at. Thanks.
Sent from my PC36100 using xda app-developers app

No Bootloader Screen
DB13 said:
Did you make sure that Fastboot was disabled in your phone's Settings? Cuz that will keep it from booting into your bootloader
Click to expand...
Click to collapse
I have the same problem with being unable to bring up the Bootloader Screen.
So I tried to follow your advice, but I don't see how to disable Fastboot.
I don't know how it was enabled in the first place. I certainly was smart enough to do it.
I went to 'Settings' but see nothing related to Fastboot. Where can it be found?
If this is a common problem, wouldn't it be a good idea to address it in the instructions?

hsfrey said:
I have the same problem with being unable to bring up the Bootloader Screen.
So I tried to follow your advice, but I don't see how to disable Fastboot.
I don't know how it was enabled in the first place. I certainly was smart enough to do it.
I went to 'Settings' but see nothing related to Fastboot. Where can it be found?
If this is a common problem, wouldn't it be a good idea to address it in the instructions?
Click to expand...
Click to collapse
Usually, it is in menu/settings/apps depending on what rom you are on.
I'm on Decks Reloaded and I think it is disabled by default, therefore, no option to enable it.

[Unbrick Service] Bricked Phone? Need Help? Look Here.

Introducing the ...
Matt Unbrick Service!
If you have a problem with your HTC One (M8), and just don't know what to do, don't despair! I can help.
With over 3 years experience with Android phones, we exist solely to help you enjoy your phone, and prevent you from experiencing the inconvenient HTC return process, which can take several weeks.
Services I offer:
Rooting
Unrooting
Unlocking Bootloaders
S-off
Updating Firmwares
Flashing RUUs
Fixing unbootable phones!
Service is free, however donations are welcome and appreciated
How it works!
To request a repair, simply post here on the thread.
I will then get back to you as soon as possible and we can then arrange a TeamViewer session or I can write up a guide for your situation, for you to follow independently.
People I have helped:
Eswog
Crazhy
nolinuxnoparty
mattoffshore
dayze0
bteljuice
Amrut223
bamidrol
ringrover
ElunChen
slicetherice
darktyroll
IT4ALii3EN
malavan
ProxiStyx
natzakaria
sly101s
smaug8821
dlnas
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SoftHd
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royoshukrun
mathrania
adichandra
sfjeep
Thanks for reading, and I hope to be able to help ​

i really need help! My HTC one M8 has been completely wiped, no OS installed. Not I can only use TWRP and i can't boot up!

Question Please Help
I was installing some roms on my vzw varient of the HTC One M8 can the install failed and so i recovered to nandroid backup and finally get data back but only have 3G any way or thing that you know that might help?

Iconic Bullet said:
I was installing some roms on my vzw varient of the HTC One M8 can the install failed and so i recovered to nandroid backup and finally get data back but only have 3G any way or thing that you know that might help?
Click to expand...
Click to collapse
Try a simple sim pull if you haven't already. Often times if you are stuck on 3g, a sim pull will enable LTE when you reboot the phone. on Verizon.

I tried that i am still having a problem can i try at revert to stock and fix it if so can you please help me...

delete

Thread cleaned.
When posting always try to provide as much information as you can.
Ghost

So I have the att varient and I tried to flash the Venom rom 1.2 version from stock rooted S-On and after flashing I am now stuck at the splash screen and cannot access the bootloader, any suggestions?
EDIT: I have figured out the problem and solved it please disregard this post.
Sent from my LG-E980 using XDA Premium 4 mobile app

Hey Matt, I wonder if you can help me out. I flashed the GPE rom, it was working fine until i decided to edit the build prop. I changed the density value from 480 to 320. It worked but it was too tiny. Then i would readjust the value to 400 but upon restart the value wouldnt change. So i tried changing it back to 480 and saved it and directly went to reboot, not my phone refuses to load up. When i hold power and volume up the HTC logo screen comes up and then it turns back off, I cannot get into bootloader by pressing volume down and power. I am stumped. If you can assist me, id be sure to tip you some BTC your way.
Thank you in advance
---------- Post added at 09:49 AM ---------- Previous post was at 09:13 AM ----------
yas1987 said:
Hey Matt, I wonder if you can help me out. I flashed the GPE rom, it was working fine until i decided to edit the build prop. I changed the density value from 480 to 320. It worked but it was too tiny. Then i would readjust the value to 400 but upon restart the value wouldnt change. So i tried changing it back to 480 and saved it and directly went to reboot, not my phone refuses to load up. When i hold power and volume up the HTC logo screen comes up and then it turns back off, I cannot get into bootloader by pressing volume down and power. I am stumped. If you can assist me, id be sure to tip you some BTC your way.
Thank you in advance
Click to expand...
Click to collapse
Never mind Matt, It eventually Loaded, Sigh what a relief. Il be sure to keep you in mind!

Hi @Matt !Got an m8 with that whelp message on firewater, u said above u can s off?

Prompt 24 hour service.....haven't seen Matt here since the 15th. Hmmm :sly:

th3lawmak3r76 said:
So I have the att varient and I tried to flash the Venom rom 1.2 version from stock rooted S-On and after flashing I am now stuck at the splash screen and cannot access the bootloader, any suggestions?
EDIT: I have figured out the problem and solved it please disregard this post.
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I have an issue similar to this.
Phone gets to the HTC powered by android screen and then dies. I cannot access bootloader using vol down and power. It won't respond.
S-Off, unlocked boot loader.
Phone also periodically turns on by itself, then procedes to shut down after it gets to the HTC Powered by android splash screen.
EDIT:
Managed to get into recovery using the advice in this post:
Tikerz said:
When you plug it into the computer does the computer make a ding sound that it's connected? If so, then press power and volume up until the disconnect ding sound which indicates it's rebooting and then immediately press volume down and see if you can get into fastboot. The timing is tricky so I've found using audio cues from computer can help if the phone is messed up.
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
Leaving this here in case anyone else has the same issue. Mods delete if you see fit.

Prompt 24 hour service? but how?

SimplyNando said:
i really need help! My HTC one M8 has been completely wiped, no OS installed. Not I can only use TWRP and i can't boot up!
Click to expand...
Click to collapse
copy your custom ROM into a flashdisk. then use USB OTG, search on youtube about the tutorial.

Mr Hofs said:
Prompt 24 hour service.....haven't seen Matt here since the 15th. Hmmm :sly:
Click to expand...
Click to collapse
It usually is, I've just got back from holiday and ran up a large phone bill so been trying to sort that out.
People should private message me so that I get the notification email as I thought I was subscribed to this thread yet when I checked just now, there's loads that I hadn't seen.
Sorry!

Matt said:
It usually is, I've just got back from holiday and ran up a large phone bill so been trying to sort that out.
People should private message me so that I get the notification email as I thought I was subscribed to this thread yet when I checked just now, there's loads that I hadn't seen.
Sorry!
Click to expand...
Click to collapse
That's no problem and could happen to all of us. But some pointers from my point of view :
When i look at your O.P you give the tendency to look like a non profit company/organization which indeed offers a free service, that's all fine but please give the users the hint when it will be "offline" when you are on holiday or at least "offline" without a reason to stop the reactions users like me posted before. It looks like a 24 hour service promise which is not there.
I have been a helpful member on the hox section of xda the last 2 years and never had the need of such a thread/service. I think it won't make that major difference because users will always make new threads with their problems anyway.
This is not ment in a bad way, just my personal opinion !
Cheers.

SimplyNando said:
i really need help! My HTC one M8 has been completely wiped, no OS installed. Not I can only use TWRP and i can't boot up!
Click to expand...
Click to collapse
kinda ran into the same problem. problem is i dont have an usb otg cable. i tried installing viper rom from but it would fail towards the end. would really like to have my phone back up and running.

exocetdj said:
Hi @Matt !Got an m8 with that whelp message on firewater, u said above u can s off?
Click to expand...
Click to collapse
He can help with this? Matt, you can help with this? hahah

Hi @Matt, i read that you can help with s-off?
I'm using a european WWE m8 (CID htc__e11) and i can't seem to get it working, you would be my personal hero if you could help me out with this one.
Greetings,
Incapable

incapable said:
Hi @Matt, i read that you can help with s-off?
I'm using a european WWE m8 (CID htc__e11) and i can't seem to get it working, you would be my personal hero if you could help me out with this one.
Greetings,
Incapable
Click to expand...
Click to collapse
If firewater isn't working for your device, then this service nor any other can help you gain S-Off, like it's been started in many threads already. You'll have to wait until firewater suports your phone.

How to remove retail mode?

Hi,
I have a galaxy note 2014 edition that has retail mode on, it was a demo ex. Is there anyway to remove this from the device? Maybe through factory reset with stock firmware or something? Have no idea how to do a factory reset with stock firmware if that works.

ClowneN86 said:
Hi,
I have a galaxy note 2014 edition that has retail mode on, it was a demo ex. Is there anyway to remove this from the device? Maybe through factory reset with stock firmware or something? Have no idea how to do a factory reset with stock firmware if that works.
Click to expand...
Click to collapse
Hi,
To do a factory reset: Switch off the tablet.
Then power it up by pressing simultaneously and holding : Volume up + Home + Power
When in Recovery mode move the cursor with the volume key and execute with the power key.
Select Factory reset and execute it.

Tilagoon said:
Hi,
To do a factory reset: Switch off the tablet.
Then power it up by pressing simultaneously and holding : Volume up + Home + Power
When in Recovery mode move the cursor with the volume key and execute with the power key.
Select Factory reset and execute it.
Click to expand...
Click to collapse
Factory reset doesnt seem to help for some reason. Its like its in the rom. Were can I find the stock rom and how do I put it in?

ClowneN86 said:
Factory reset doesnt seem to help for some reason. Its like its in the rom. Were can I find the stock rom and how do I put it in?
Click to expand...
Click to collapse
Have a look HERE it's for the S5 but it should something similar for the Note 2014.

Tilagoon said:
Have a look Here it's for the S5 but it should something similar for the Note 2014.
Click to expand...
Click to collapse
Ive done every step of that guide except flash with a stock rom since I dont know were to get it or how to flash the devicce.

ClowneN86 said:
Ive done every step of that guide except flash with a stock rom since I dont know were to get it or how to flash the devicce.
Click to expand...
Click to collapse
Hi,
OK, the first thing to know is which device you have: Sm-P600/601/605 ??
Then to know which ROM is installed on the tablet ?
If you can go to setting : then scroll down to "About the phone" you should see the version of the ROM.
With that you go to sammobile
You put your device type and you will get all the stock ROM's
You click on the one you want and on the next windows you will have the URL to download and the way to install it.
To be able to download the ROM you have to register on this site but it's free of charge !!

Tilagoon said:
Hi,
OK, the first thing to know is which device you have: Sm-P600/601/605 ??
Then to know which ROM is installed on the tablet ?
If you can go to setting : then scroll down to "About the phone" you should see the version of the ROM.
With that you go to
You put your device type and you will get all the stock ROM's
You click on the one you want and on the next windows you will have the URL to download and the way to install it.
To be able to download the ROM you have to register on this site but it's free of charge !!
Click to expand...
Click to collapse
Its a SM-P600,
Kernel Version: 3.4.39-1691324
Build Number: JSS15J.P600XXXUAMI8_LLK
I tried that site but canceled it cause it said it will take 15h to download the firmware.

You can try from HERE
But I am not sure it will be any faster.
Those ROM's are quite big > 1.xx Gb so if your internet connection is slow it's take time.

Tilagoon said:
You can try from HERE
But I am not sure it will be any faster.
Those ROM's are quite big > 1.xx Gb so if your internet connection is slow it's take time.
Click to expand...
Click to collapse
It seems to go a little bit faster today from sammobile. I have a 100/100 connection so it should go fast
Thanks for taking the time to help.

Tilagoon said:
You can try from
But I am not sure it will be any faster.
Those ROM's are quite big > 1.xx Gb so if your internet connection is slow it's take time.
Click to expand...
Click to collapse
Stock firmware solved everything so a big thanks to you!

ClowneN86 said:
Stock firmware solved everything so a big thanks to you!
Click to expand...
Click to collapse
Great :good: Good news , very happy you could make it work !! :good:

Tilagoon said:
Great :good: Good news , very happy you could make it work !! :good:
Click to expand...
Click to collapse
One more question, I can´t seem to set some kind of password for the lockscreen since the lock screen option is gone in some way. It says something about Knox but what is that?
Can i add some other app that handles the lock screen?

About Knox: it's some kind of security introduced by Samsung some months ago, a real pain in the back..
Have a look HERE (for example) for more details.
Yes you can install applications w/o problem.
Knox will only get involved when you start playing with the ROM's, Bootloader etc ..

Hi
Hello guys, I have an Galaxy S6 Edge Demo version, I want to know if I change the motherboard with another with GSM function, it will work fine ?
The digital finger print doesn't work, I have to change the button or how can I fix this ?
And another thing, in the background of display, you can barely notice a text, this : Samsung Galaxy S6 Edge, this thing is from display or motherboard ? Because I want to know, if I change the motherboard, it will dissapear that text ?
Thank you.

I would like to remove the starting screen ''Live demo unit'' on SM-T800X tablet to the stock one, and after flashing I have got the demo pieces of text in the bottom of the screen.
I tried to re-partition the install with ODIN and used a PIT file but no changes. Anybody can help with this problem please ? Is there any solution to change the demo unit to look as a stock SM-T800 ?
Also if there any solution to change KNOX value to 0 would be great.

HTC M8- Developer Won't turn on, some settings are blocked and useless ads

Hello, I recently got this HTC M8 from a friend, and it's really annoying.
Let me start with begining:
1. I got some ads with HTC EYE , HTC BOOMSOUND that distrubs me, they just pop up even if phone is in stand by:
2. I tapped on that build no and made developer optins appear, but they won't turn on( I need to turn them on so I can de-activate the USB debugging. :
3. I can't do some functions for example: I can't choose a lock screen, I can't change brightness and many more things. What is the problem? :
Please help me!
!!! I'VE ATTACHED PHOTOS BECAUSE NEW USERS LIKE ME CAN'T POST OUTSIDE LINKS!!!

Well, if the phone is stock you can perform a factory reset and see if that solves, otherwise you can flash a custom rom and this should solve issue :good:
Sent from here

lukes91 said:
Well, if the phone is stock you can perform a factory reset and see if that solves, otherwise you can flash a custom rom and this should solve issue :good:
Sent from here
Click to expand...
Click to collapse
I've already did 10-12 factory resets since wednesday

Ssergiuuu said:
I've already did 10-12 factory resets since wednesday
Click to expand...
Click to collapse
So maybe your solution is a custom rom...
Sent from here

lukes91 said:
So maybe your solution is a custom rom...
Sent from here
Click to expand...
Click to collapse
How i'm supposed to install custom ROM when Developer Settings are stuck? I can't turn them on...
nevermind, i managed to activate developer options.

how to downgrade to android 6

hi
I have an HTC 10 Nougat 7.0 v2.41.401.4
phone is unlocked and S-ON
It's camera stopped working so I googled and I did a lot of work (clearing cash ,master reset , .....)some told it might be a software problem so there is a chance by downgrading to Android 6 and camera might work!
how could I do that?
I'm not professional at this would you please explain with detail?
Is there any official Rom higher than mine(v2.41.401.4 )?

ghsouri said:
hi
I have an HTC 10 Nougat 7.0 v2.41.401.4
phone is unlocked and S-ON
It's camera stopped working so I googled and I did a lot of work (clearing cash ,master reset , .....)some told it might be a software problem so there is a chance by downgrading to Android 6 and camera might work!
how could I do that?
I'm not professional at this would you please explain with detail?
Is there any official Rom higher than mine(v2.41.401.4 )?
Click to expand...
Click to collapse
I don't see how that would fix your issue, but in any case the only way to downgrade to 6.0 would be to pay for S-Off first.
You could try running the ruu for your current version and see if it helps. It would restore your phone to a fully virgin state.

I really dont know how could it help (downgrading)but some people who had same problem told downgrading to android 6 helped camera came back!
you mean I download RUU with the my current version and flash it ?

ghsouri said:
I really dont know how could it help (downgrading)but some people who had same problem told downgrading to android 6 helped camera came back!
you mean I download RUU with the my current version and flash it ?
Click to expand...
Click to collapse
Yeah that's one thing you could try first and see if it helps. Don't forget that it completely wipes your phone so back everything up.

Tarima said:
Yeah that's one thing you could try first and see if it helps. Don't forget that it completely wipes your phone so back everything up.
Click to expand...
Click to collapse
I installed TWRP and wiping cash solved my problem without installing new rom (great)
camera came back!!!!!!!!!!!!!!!!!
but camera focous is awful ?
pictur quality is very bad ?

Help my cell phone
Can you please tell me the steps you took? My cell phone has the same problem with the camera

Pablojosema said:
Can you please tell me the steps you took? My cell phone has the same problem with the camera
Click to expand...
Click to collapse
You don't really need TWRP to clear cache.
To do that, you go to setting -> Apps -> Camera
Click on Storage, at the very bottom, there is clear data and clear cache buttons. <You want to back up all your pictures before clearing anything!>
A factory reset will also do the same thing, but that would erase everything on the phone.
Both the steps assume something in the software is messed up, and you are returning the phone to virgin state to start over.
Clearing cache/data in camera app resets the app in case some setting is messed up. Factory reset should restore all settings of the phone to default, get rids of all added apps, etc. More drastic step is to reinstall the firmware in case it is corrupted. You can do that with TWRP if you have a nandroid backup, or use an RUU from HTC.

(I downloaded TWRP for HTC 10 -one file about 30 MB- and after installing through twrp I wiped all cash and after reboot camera came back also with auto focus problem and bad picture quality)
well only it was OK for one hour and after that camera gone!!!
Its a hardware problem
All things done by me was useless !!!
I recommend you send it to HTC support (warranty)
and don not waste your time like me!!!

ghsouri said:
(I downloaded TWRP for HTC 10 -one file about 30 MB- and after installing through twrp I wiped all cash and after reboot camera came back also with auto focus problem and bad picture quality)
well only it was OK for one hour and after that camera gone!!!
Its a hardware problem
All things done by me was useless !!!
I recommend you send it to HTC support (warranty)
and don not waste your time like me!!!
Click to expand...
Click to collapse
Have you tried to run an RUU?

I could have say without even reading further, that this is a hardware problem if not even a hard reset helped
Sent from my HTC 10 using XDA Labs

DeeZZ_NuuZZ said:
I could have say without even reading further, that this is a hardware problem if not even a hard reset helped
Sent from my HTC 10 using XDA Labs
Click to expand...
Click to collapse
imo, run an ruu and if the issue remains definitely hardware, but yes you're more than likely correct

xunholyx said:
Have you tried to run an RUU?
Click to expand...
Click to collapse
My cell phone is S-ON and Locked, status official.
Can I run ruuu?

Pablojosema said:
My cell phone is S-ON and Locked, status official.
Can I run ruuu?
Click to expand...
Click to collapse
Yes.