Develop Bugs

Stock, can't get into recovery/download modes

Hi guys. Im pretty experienced with android but this one has me stumped. My buddies brother has a stock/non-rooted optimus g e971 on Rogers. He changed his screen lock password and forgot what it is. Of course he never register a Gmail account so I can't recover that way. I figure no problem. Shut down, pwr+vol down to factory reset. Well nope doesn't work. It flashes the lg logo twice then boots like normal.
Ok so I figure I'll just put it in download mode/fast boot to do the factory reset. Tried pwr+vol up. Nope. Vol up+vol down+pwr. Nope. Vol up+vol down and plug usb+pwr. Nope. It just flashed the lg logo twice then boots like normal. I've tried multiple variations of each holding the pwr for different lengths of time, always with the same result.
Anyone have any suggestions? It's not bricked, and the vol keys are working, it just won't go into any modes.

also I dont know if he has hardware encryption enabled (of if thats even an option on this device) but would that even prevent me from getting into factory reset / download mode?
Also I check that the vol rocker is working. when it is on but screen is off, if i click the vol rocker either way it wakes the screen.

I have a similar problem.Here's a thread I made about it http://forum.xda-developers.com/optimus-g-intl/help/enter-download-mode-t2883542.A couple of guys had some ideas.None worked in my phone but maybe you're luckier.
If you haven't done that already you should try going into download mode by pressing power up+down and plug the cable, don't press the pwr button.
If you find a solution pls let me know .

Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425

sir Impecable said:
I have a similar problem.Here's a thread I made about it http://forum.xda-developers.com/optimus-g-intl/help/enter-download-mode-t2883542.A couple of guys had some ideas.None worked in my phone but maybe you're luckier.
If you haven't done that already you should try going into download mode by pressing power up+down and plug the cable, don't press the pwr button.
If you find a solution pls let me know .
Click to expand...
Click to collapse
I can't get into download mode using that method. It just boots like normal.

ff_29 said:
Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425
Click to expand...
Click to collapse
Doesn't work either. If I hold +/- for 10 sec then plug in the usb it flashes the lg logo twice, then goes to the battery charging screen. If I hold +/- for 20 sec then plug in the usb it flashes the lg logo twice then boots like normal.

after reading this post i went and tried if i also cant get into the recovery and the same happened to me, the LG logo just flashes and nothing happens. mine is stock E975 (4.4.2).

worked for me.
burnski said:
Hi guys. Im pretty experienced with android but this one has me stumped. My buddies brother has a stock/non-rooted optimus g e971 on Rogers. He changed his screen lock password and forgot what it is. Of course he never register a Gmail account so I can't recover that way. I figure no problem. Shut down, pwr+vol down to factory reset. Well nope doesn't work. It flashes the lg logo twice then boots like normal.
Ok so I figure I'll just put it in download mode/fast boot to do the factory reset. Tried pwr+vol up. Nope. Vol up+vol down+pwr. Nope. Vol up+vol down and plug usb+pwr. Nope. It just flashed the lg logo twice then boots like normal. I've tried multiple variations of each holding the pwr for different lengths of time, always with the same result.
Anyone have any suggestions? It's not bricked, and the vol keys are working, it just won't go into any modes.
Click to expand...
Click to collapse
i also have a stock 4.4.2 E975 and i also cant go to the recovery, but i happened to have found this video on youtube, it worked for me :victory:
he pressed again the power and volume down button simultaneously after the LG logo appeared.
https://www.youtube.com/watch?v=24Zq047J60c

ff_29 said:
Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425
Click to expand...
Click to collapse
j4yd3n said:
i also have a stock 4.4.2 E975 and i also cant go to the recovery, but i happened to have found this video on youtube, it worked for me :victory:
he pressed again the power and volume down button simultaneously after the LG logo appeared.
https://www.youtube.com/watch?v=24Zq047J60c
Click to expand...
Click to collapse
Still nothing. Did exactly the same thing, tried a dozen times, just boots like normal.

burnski said:
also I dont know if he has hardware encryption enabled (of if thats even an option on this device) but would that even prevent me from getting into factory reset / download mode?
Also I check that the vol rocker is working. when it is on but screen is off, if i click the vol rocker either way it wakes the screen.
Click to expand...
Click to collapse
971 hardware encryption it? Are you sure there is no equipment to unlock BL

Solitarily said:
971 hardware encryption it? Are you sure there is no equipment to unlock BL
Click to expand...
Click to collapse
Android has SD card encryption disabled by default - but if it was enabled it shouldnt disable recovery/fastboot - right?
Even if the bootloader is locked, i should still be able to get into fastboot/download mode, and/or recovery, right?

burnski said:
Android has SD card encryption disabled by default - but if it was enabled it shouldnt disable recovery/fastboot - right?
Even if the bootloader is locked, i should still be able to get into fastboot/download mode, and/or recovery, right?
Click to expand...
Click to collapse
Even SD encryption is enabled, it will not affect enter fastboot mode / download mode

Solitarily said:
Even SD encryption is enabled, it will not affect enter fastboot mode / download mode
Click to expand...
Click to collapse
That's what i figured, but i didn't know if there is some quirk with this device i wasn't aware of.
Is it possible i have a corrupt boot loader? Again this device I'd completely stock.

anyone?

[Q] Tab Pro 8.4 won't turn on

Hello everyone! My Galaxy Tab Pro 8.4 won't turn on anymore. I tried charging it, that wasn't the issue. I left it on the charger and nothing changed. I plugged it into my PC and it didn't make any noises and it doesn't even recognize it as an unrecognizable device. Is there any button combo to see if it's 100% fried or not?
A couple of weeks ago I rooted it and updated it to another ROM, but it had been working PERFECTLY since then! WEEKS!
Any suggestions?

power button
Press and hold the power button for 30 - 40 seconds and see if it powers up. I had this problem yesterday.

dwcasey said:
Press and hold the power button for 30 - 40 seconds and see if it powers up. I had this problem yesterday.
Click to expand...
Click to collapse
This did not work

Hold the power button down for 2 minutes and don't let go, also hold vol up while doing it to see if you can get into recovery.
keep it plugged into the charger while you do this.

otyg said:
Hold the power button down for 2 minutes and don't let go, also hold vol up while doing it to see if you can get into recovery.
keep it plugged into the charger while you do this.
Click to expand...
Click to collapse
OK, this worked. How can I unroot and restore the OEM bootloader and everything?
Before flashing I made a TWRP Backup, as well as a Flashify-backup.
I have these two folders on my desktop.

zkyevolved said:
OK, this worked. How can I unroot and restore the OEM bootloader and everything?
Before flashing I made a TWRP Backup, as well as a Flashify-backup.
I have these two folders on my desktop.
Click to expand...
Click to collapse
to restore everything you will need to boot into download mode , if you are in download mode now you can use kies or odin to flash the stock firmware and this will correct everything.
to boot to download mode its either (Power + vol down) , or (power + vol up) , try both until you see it say download mode., or if you are currently in twrp you can select reboot->download mode
you can get th stock firmware here
http://www.sammobile.com/firmwares/database/SM-T320/
(Cellular south) XAR is USA wifi model.

otyg said:
to restore everything you will need to boot into download mode , if you are in download mode now you can use kies or odin to flash the stock firmware and this will correct everything.
to boot to download mode its either (Power + vol down) , or (power + vol up) , try both until you see it say download mode., or if you are currently in twrp you can select reboot->download mode
you can get th stock firmware here
http://www.sammobile.com/firmwares/database/SM-T320/
(Cellular south) XAR is USA wifi model.
Click to expand...
Click to collapse
And this will remove root, TWRP and any custom roms?

zkyevolved said:
And this will remove root, TWRP and any custom roms?
Click to expand...
Click to collapse
yeah it will be like when you first bought it.
btw when using Odin3 put the firmware under the AP box, don't mess with any options.

How do I boot to recovery without adb?

Does anybody know what the button combo is to boot into recovery? I'm able to successfully able to boot in by using "adb reboot recovery", but trying all combinations of the power and volume buttons won't boot into recovery mode and will just boot the phone normally. Does anybody have any suggestions?

Someone posted in another thread, but Iirc it was like turn the phone off, the press volume up and plug in the USB or something like that.. Maybe it was power down, try both

mikeandjaimie said:
Someone posted in another thread, but Iirc it was like turn the phone off, the press volume up and plug in the USB or something like that.. Maybe it was power down, try both
Click to expand...
Click to collapse
Yeah that worked. USB + up boots recovery and USB + down boots to bootloader.

ThatGuy94 said:
Yeah that worked. USB + up boots recovery and USB + down boots to bootloader.
Click to expand...
Click to collapse
I was trying to figure this out myself. Thanks for posting. It's the first phone I've had with this combo. Strange.... I guess this means we have to lug a cable around everywhere.

I've tried to use Vol Up + USB bout no dice in my Razer Phone, may that be connected to carrier firmware as I have Three UK one?

darknetcs said:
I've tried to use Vol Up + USB bout no dice in my Razer Phone, may that be connected to carrier firmware as I have Three UK one?
Click to expand...
Click to collapse
If it's unlocked, it shouldn't matter what carrier you're on (I'm on T-Mobile in the US and bought it carrier unlocked). Make sure the phone is plugged in first then turn it off. Once it's off, press the volume up and it should begin to boot into recovery.

ThatGuy94 said:
If it's unlocked, it shouldn't matter what carrier you're on (I'm on T-Mobile in the US and bought it carrier unlocked). Make sure the phone is plugged in first then turn it off. Once it's off, press the volume up and it should begin to boot into recovery.
Click to expand...
Click to collapse
Thanks for advice, I'll give it a shot and see what's happen

Stuck on "powered by android logo" , PLEASE HELP

so i have an m30 , i flashed root successfully for the first time , then i decided to download a modded version of play store thats when my phone got stuck on the samsung logo , or whats called a boot loop , so i flashed a stock rom and it worked , i want to check if the oem unlock option in developer mode and it was there , i forget to check the usb debuging option so im not sure if its on or off , but i flashed root again and now im stuck on " SAMSUNG GALAXY M30
POWERED BY Android " logo , the phone just keeps restarting , rebooting not able to stop it or to boot to download mode , please please please help me

Manahzak said:
so i have an m30 , i flashed root successfully for the first time , then i decided to download a modded version of play store thats when my phone got stuck on the samsung logo , or whats called a boot loop , so i flashed a stock rom and it worked , i want to check if the oem unlock option in developer mode and it was there , i forget to check the usb debuging option so im not sure if its on or off , but i flashed root again and now im stuck on " SAMSUNG GALAXY M30
POWERED BY Android " logo , the phone just keeps restarting , rebooting not able to stop it or to boot to download mode , please please please help me
Click to expand...
Click to collapse
Does it have battery removal ?

DankMemz said:
Does it have battery removal ?
Click to expand...
Click to collapse
Nope

Manahzak said:
Nope
Click to expand...
Click to collapse
Then you're pretty much screwed

DankMemz said:
Then you're pretty much screwed
Click to expand...
Click to collapse
Give me some hope

Manahzak said:
Give me some hope
Click to expand...
Click to collapse
Dude, try holding volume down plus home button (if it has one) for 30 sec. If this doesn't work try holding volume up and home button (only if it has one).

DankMemz said:
Dude, try holding volume down plus home button (if it has one) for 30 sec. If this doesn't work try holding volume up and home button (only if it has one).
Click to expand...
Click to collapse
no it doesn't have a home button , and nothing will stop it , what i noticed tho that if i hold vol down and the power button the next time the logo will disappear way faster but only once each hold and ill get a delay of 2 seconds before that logo appearing again and the phone rebooting , its been literally 62 hours since it started doing this , it started with a battery fully charged meaning a 5000ma , about that delay i tried using it but nothing worked , i tried clicking vol up and power button which is supposed to put the phone in recovery mode but nothing happens , i went as far as spamming random buttons to holding them for more than a minute , nothing stops it

Manahzak said:
no it doesn't have a home button , and nothing will stop it , what i noticed tho that if i hold vol down and the power button the next time the logo will disappear way faster but only once each hold and ill get a delay of 2 seconds before that logo appearing again and the phone rebooting , its been literally 62 hours since it started doing this , it started with a battery fully charged meaning a 5000ma , about that delay i tried using it but nothing worked , i tried clicking vol up and power button which is supposed to put the phone in recovery mode but nothing happens , i went as far as spamming random buttons to holding them for more than a minute , nothing stops it
Click to expand...
Click to collapse
Then you hard bricked your device, sorry to tell you that. Take it to a service, and see if they can do anything to it, but you most surely bricked the hell out of your device, up to the point of no return.

DankMemz said:
Then you hard bricked your device, sorry to tell you that. Take it to a service, and see if they can do anything to it, but you most surely bricked the hell out of your device, up to the point of no return.
Click to expand...
Click to collapse

If you want to boot into download mode try this:
When you see Samsung logo immediately press volume up + down and while holding connect the phone to PC using Type-C.
A warning screen will appear now press Volume Up button to boot into Download mode.

ashubais said:
if you want to boot into download mode try this:
When you see samsung logo immediately press volume up + down and while holding connect the phone to pc using type-c.
A warning screen will appear now press volume up button to boot into download mode.
Click to expand...
Click to collapse
thank youuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
i love u and i greatly apprecciate it

Manahzak said:
thank youuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
i love u and i greatly apprecciate it
Click to expand...
Click to collapse
I am glad that this worked for you and your welcome.

ashubais said:
If you want to boot into download mode try this:
When you see Samsung logo immediately press volume up + down and while holding connect the phone to PC using Type-C.
A warning screen will appear now press Volume Up button to boot into Download mode.
Click to expand...
Click to collapse
My samsung M30S was stuck at boot screen for no reason and tried everything until I came upon your post and did as described. I was able to get into safe mode and reboot the phone. Thanks very much.

technofast said:
My samsung M30S was stuck at boot screen for no reason and tried everything until I came upon your post and did as described. I was able to get into safe mode and reboot the phone. Thanks very much.
Click to expand...
Click to collapse
Great. Good to hear that it worked for you.

ashubais said:
If you want to boot into download mode try this:
When you see Samsung logo immediately press volume up + down and while holding connect the phone to PC using Type-C.
A warning screen will appear now press Volume Up button to boot into Download mode.
Click to expand...
Click to collapse
Download mode not open for me :crying: :crying: :crying:

If you are stuck on Samsung Logo, connect to PC and press Vol Down + Power for 7 seconds. It will go to charge mode. Disconnect from PC and it will power off automatically. After that press Volume Up + Down and connect to PC while holding and you will enter download mode. It will ask for confirmation.

Useful. Works
ashubais said:
If you want to boot into download mode try this:
When you see Samsung logo immediately press volume up + down and while holding connect the phone to PC using Type-C.
A warning screen will appear now press Volume Up button to boot into Download mode.
Click to expand...
Click to collapse
Thank you for this post. I did this and my phone booted to TWRP. (I was flashing TWRP when I encountered the bootloop)
After booting to TWRP, I did an advanced wipe (I left System unchecked). After the wipe, the phone booted normally.

verisence said:
Thank you for this post. I did this and my phone booted to TWRP. (I was flashing TWRP when I encountered the bootloop)
After booting to TWRP, I did an advanced wipe (I left System unchecked). After the wipe, the phone booted normally.
Click to expand...
Click to collapse
TWRP on M305F, Android 10?

vdbhb59 said:
TWRP on M305F, Android 10?
Click to expand...
Click to collapse
Mine is M307FN, android 10

verisence said:
Mine is M307FN, android 10
Click to expand...
Click to collapse
Cool. TWRP for Android 10 came for M305F, and I am on GSI now.

Samsung Galaxy A50 Issue after Update

Hey People,
maybe someone of you can help me.
I made a normal Update of my Phone 5 days ago after the Update my Phone went off and now it shows a Blue Screen with the Information that something went wrong while the Update.
I tried to repair it with the Smart Switch Pc Software but it don't worked.
I gave it to the store where i bought it but they want that i pay for the fix. Honestly i didn't tried to root it because i needed it for work.
Had someone that issue and can help me how i can fix that by myself?
Kind Regards
Saint

yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone

download mode
yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
I am trying that on my A505UI and it only puts me in SAFE MODE.

fototakerWNY said:
I am trying that on my A505UI and it only puts me in SAFE MODE.
Click to expand...
Click to collapse
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.

It finally worked after....
pripyaat said:
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.
Click to expand...
Click to collapse
Thanks for your reply. I did as you suggested but that gave me a normal boot. I tried as someone else suggested, pressing power+UP volume and that did finally get me to recovery mode! Played around with that for half hour
Thanks again! Now if only can get the transfer working in OTG!!!

yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
Hey that worked for me Thank you