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[Q] Help, can't start phone

Hello, first, srry for my bad english, can anyone help me with the next problem:
The phone start and power off on 3 seconds and i can't install roms in cellphone, this problem start without any install mod , only the cellphone shutdown and when i start it don't works. I can enter in download mode for install a rom, but in 3 seconds the phone is power off and i can't install roms. The phone is a Samsung galaxy y pro (B5510L)
Video off the problem : youtube.com/watch?v=ISTdcHc1kAE
Please help , thank you

I suggest you take the phone to a repair shop and ask them to repair it.
Umar08

brau96 said:
Hello, first, srry for my bad english, can anyone help me with the next problem:
The phone start and power off on 3 seconds and i can't install roms in cellphone, this problem start without any install mod , only the cellphone shutdown and when i start it don't works. I can enter in download mode for install a rom, but in 3 seconds the phone is power off and i can't install roms. The phone is a Samsung galaxy y pro (B5510L)
Video off the problem : youtube.com/watch?v=ISTdcHc1kAE
Please help , thank you
Click to expand...
Click to collapse
Can you boot your phone in CWM recovery?

You should charge your phone first.. Make sure your phone's battery is fully charged.

charge the phone, enter download mode while connected to a pc, flash a stock kernel with odin then flash the rom. does the recovery mode work?

Hello, first thanks for the answer, im sure the battery is fully charged, becouse i get 2 batteris off my friends and i asked them if the baterry is charged and them tell yes, and i can't get recovery mode, if i press +vol and home button and power button the phone start with the samsung model screen and power off on 3 seconds, i dont know what to do. Thanks

brau96 said:
Hello, first thanks for the answer, im sure the battery is fully charged, becouse i get 2 batteris off my friends and i asked them if the baterry is charged and them tell yes, and i can't get recovery mode, if i press +vol and home button and power button the phone start with the samsung model screen and power off on 3 seconds, i dont know what to do. Thanks
Click to expand...
Click to collapse
download stock rom for your device, launch odin, enter download mode by pressing Volume down Key + OK button+power button

EPICoverclock said:
download stock rom for your device, launch odin, enter download mode by pressing Volume down Key + OK button+power button
Click to expand...
Click to collapse
Thanks for answer, the phone enter in download mode, but in 5 seconds get power off automatically and odin haven't time to recognize the phone and now i can't power on the phone, i need remove the battery and put it again. Thanks

nothing?

brau96 said:
nothing?
Click to expand...
Click to collapse
maybe your power button is stuck, or other button is stock

Get it repaired (talk to your phone company about this e.g. Sony), i think its the only way to fix your phone.:thumbup:
Umar08

i guess its only solution possible, i want repair it becouse i dont want spent money in software repairs, but i can't... 1 thing more, i see its a problem of boot, anyone have ideas for reapair boot options? thanks

- try charging the accu externaly
- while on booting try combos of vol +/- and power button to access recovery menu
- dissasemble and check the buttons
- maybe ADB debugging interface is available over USB -> try

givemeaname said:
- try charging the accu externaly
- while on booting try combos of vol +/- and power button to access recovery menu
- dissasemble and check the buttons
- maybe ADB debugging interface is available over USB -> try
Click to expand...
Click to collapse
Im sure the battery is charged becouse i charge it on friends phones
i can't enter in recovery menu, the phone have power off before.
i dissasemble the phone and i don't see anything unusual.
and i don't undestand what its ADB debugging interface.
Thanks

Can you get your phone into recovery mode?
Umar08

Umar08 said:
Can you get your phone into recovery mode?
Umar08
Click to expand...
Click to collapse
No,i can't get phone i recovery mode. I press vol + and home and power button, and power on with samsung model phone, and automatly power off.
Thankss

brau96 said:
, and automatly power off.
Click to expand...
Click to collapse
Sounds like you have battery problem, try cleaning contacts on battery as well as phone and use another battery to test (borrow one) .
for other solutions look in My Android Solutions
Check this out! You , YES! you are an " Android ". Not your phone but U.​

xsenman said:
Sounds like you have battery problem, try cleaning contacts on battery as well as phone and use another battery to test (borrow one) .
for other solutions look in My Android Solutions
Check this out! You , YES! you are an " Android ". Not your phone but U.​
Click to expand...
Click to collapse
I have tested 2 batterys, the battery has been charge by my friend becouse i can't charge it, and im sure the battery its works good in other phone , and i clean the contacts but nothing :s thanks you

when my micro usb pins inside my samsung galaxy mini where in contact and they were short circuit my phone only turned on for like 1 second then turned off

Are the batteries compatible with your phone
Umar08

Lost root and have bootloop...bricked?

Hi,
really need help...I was about to sold my old HTC Sensation XE, rooted and had viper 5.2.1 on it - deleted everything from SD card, but wanted to be sure nothing remained on my phone so I made factory reset (i think I shouldn't to this)..
Now when I turn phone On it loads HTC logo, then Viper logo and restarts and then again HTC, Viper restart...
When I hold power button + vol.down nothing happens (HTC->Viper and restart) + all the buttons are flashing...
Did I bricked my phone for good or is there a way how to reflash everything?
Thanks

hawkeeyee said:
Hi,
really need help...I was about to sold my old HTC Sensation XE, rooted and had viper 5.2.1 on it - deleted everything from SD card, but wanted to be sure nothing remained on my phone so I made factory reset (i think I shouldn't to this)..
Now when I turn phone On it loads HTC logo, then Viper logo and restarts and then again HTC, Viper restart...
When I hold power button + vol.down nothing happens (HTC->Viper and restart) + all the buttons are flashing...
Did I bricked my phone for good or is there a way how to reflash everything?
Thanks
Click to expand...
Click to collapse
v u puled out the battery.....
if not helped then flash recovery through fastboot and then flash viper rom again

is this possible when Im not able to access HBOOT menu or do anything with power + vol down?

hawkeeyee said:
is this possible when Im not able to access HBOOT menu or do anything with power + vol down?
Click to expand...
Click to collapse
Like said above, pull out the battery for 10 seconds n put back in then ul be able to boot into bootloader with vol down + power

didn't helped

hawkeeyee said:
didn't helped
Click to expand...
Click to collapse
U must be doing it wrong or ur volume button is dodgy. Ur phone being in a bootloop should not affect getting into bootloader once uv pulled the battery.

I'm sure it was working before (my girlfriend used it a never told me she is not available to lower the sound)
why are bottom buttons flashing while holding power + vol down?

hawkeeyee said:
I'm sure it was working before (my girlfriend used it a never told me she is not available to lower the sound)
why are bottom buttons flashing while holding power + vol down?
Click to expand...
Click to collapse
I dunno, mine does that if im in a bootloop n i try a hard reset. Dont worry. The vol button mite work but she mite just need to give it an extra push, no harm in cleaning it coz the sensations r bad for dust getting in there. K pull the battery out for a min n put back in then press and hold vol down (hard) and press n hold power button. U should get to bootloader, keep trying till u do. As long as u pull the battery out u should get there at some point.

Sometimes I also have to pull the battery out twice to make it go into bootloader. Just make sure you have enough charge in the battery too.

no luck... tried it around 20 times and nothing... communication via fastboot is not working..
so I guess there is no other way how to enter recovery as vol down and power
?

hawkeeyee said:
no luck... tried it around 20 times and nothing... communication via fastboot is not working..
so I guess there is no other way how to enter recovery as vol down and power
?
Click to expand...
Click to collapse
Dunno bud should work. U can try adb commands but dunno if that will work tho. So boot ur phone normaly and when its at boot animation, plug in ur phone to pc and open command window n type
adb reboot recovery

hawkeeyee said:
no luck... tried it around 20 times and nothing... communication via fastboot is not working..
so I guess there is no other way how to enter recovery as vol down and power
?
Click to expand...
Click to collapse
try this
switch the phone normally
when you see the htc logo or the viper logo type the command adb reboot bootloader
have your device already connected

error: device not found
drivers for win installed, when phone is powered off I can see him in win as removable disk...
asking if I'm doing this as I should:
downloaded Android SDK and made initial set-up as wrote here: http://forum.xda-developers.com/showthread.php?t=2277112

hawkeeyee said:
error: device not found
drivers for win installed, when phone is powered off I can see him in win as removable disk...
asking if I'm doing this as I should:
downloaded Android SDK and made initial set-up as wrote here: http://forum.xda-developers.com/showthread.php?t=2277112
Click to expand...
Click to collapse
Use this tool for fastboot setup
http://forum.xda-developers.com/showthread.php?t=2588979

still same

hawkeeyee said:
still same
Click to expand...
Click to collapse
K, pull the battery out n back in, then leave the battery cover off ur phone and press the vol down button then press n hold the power button (both same time) see if that boots into bootloader.

nope, tried that 30x already

hawkeeyee said:
nope, tried that 30x already
Click to expand...
Click to collapse
what windows OS do you have?

win 7, 64bit

hawkeeyee said:
win 7, 64bit
Click to expand...
Click to collapse
try the latest htc drivers from here
http://forum.xda-developers.com/showthread.php?t=2217396

Bootloop Google Logo (Try a lot a solutions)

Hi,
I have a problem with my Nexus 5, it bootloop on the Google Logo
I try to put a little piece of paper behind the power button and also to click on the power button a lot of times during the boot but it still stuck..
What can I do to try fix it ?
Thanks in advance

is this the kind of bootloop where it loops because of a stuck power button or is it a software based bootloop?

matgras said:
is this the kind of bootloop where it loops because of a stuck power button or is it a software based bootloop?
Click to expand...
Click to collapse
Same as this : https://www.youtube.com/watch?v=jzj73qYg5HA
I take the motherboard off, try to connect just the battery and the screen but same problem..

nathan30 said:
Same as this : https://www.youtube.com/watch?v=jzj73qYg5HA
I take the motherboard off, try to connect just the battery and the screen but same problem..
Click to expand...
Click to collapse
that happened to my old ativ s as well, it was due to a broken power button (electrically stuck, not mechanically) the only solution for me was to solder a new power button on it. But I just used it as an excuse to get a new phone.

matgras said:
that happened to my old ativ s as well, it was due to a broken power button (electrically stuck, not mechanically) the only solution for me was to solder a new power button on it. But I just used it as an excuse to get a new phone.
Click to expand...
Click to collapse
Did you try this solution or not ? To know if I can try to do it

nathan30 said:
Did you try this solution or not ? To know if I can try to do it
Click to expand...
Click to collapse
I haven't, it may be very hard depending on the phone model, I just removed it with pliers so I could boot it with a usb cable and I got all the data I needed from my phone.
Can you get your phone into recovery or fastboot mode?

matgras said:
I haven't, it may be very hard depending on the phone model, I just removed it with pliers so I could boot it with a usb cable and I got all the data I needed from my phone.
Can you get your phone into recovery or fastboot mode?
Click to expand...
Click to collapse
So I try to unsolder the power button and now the phone didn't bootloop anymore. Now I'm waiting the new power button I ordered to see.
And to answer your question, I was not able to reach fastboot or the recovery

nathan30 said:
So I try to unsolder the power button and now the phone didn't bootloop anymore. Now I'm waiting the new power button I ordered to see.
And to answer your question, I was not able to reach fastboot or the recovery
Click to expand...
Click to collapse
if you install gravitybox and xposed there should be an option to turn on the screen with the volume buttons (I'm not sure though, it might have been another module) so you could use that as a temporary solution.

matgras said:
if you install gravitybox and xposed there should be an option to turn on the screen with the volume buttons (I'm not sure though, it might have been another module) so you could use that as a temporary solution.
Click to expand...
Click to collapse
I can't have the phone booting, so I have to wait the new button ^^

nathan30 said:
I can't have the phone booting, so I have to wait the new button ^^
Click to expand...
Click to collapse
with phone turned off, (you can remove the battery and re plug it), hold the volume down button and connect it to the wall charger(do not use PC,it will trigger lg download mode), then you will be able to go to fastboot.
Once there you can:
fastboot reboot to boot to normal OS
fastboot boot twrp so you can install a rom or any other mod

opssemnik said:
with phone turned off, (you can remove the battery and re plug it), hold the volume down button and connect it to the wall charger(do not use PC,it will trigger lg download mode), then you will be able to go to fastboot.
Once there you can:
fastboot reboot to boot to normal OS
fastboot boot twrp so you can install a rom or any other mod
Click to expand...
Click to collapse
Oh I didn't know this tips. Thanks a lot I will try asap. But the lg download mode can't be a good solution to reinstall a rom with the computer?

nathan30 said:
Oh I didn't know this tips. Thanks a lot I will try asap. But the lg download mode can't be a good solution to reinstall a rom with the computer?
Click to expand...
Click to collapse
it locks the bootloader and fully wipes the userdata
here is the thread link
http://forum.xda-developers.com/goo...orial-how-to-flash-factory-images-lg-t2713833

opssemnik said:
it locks the bootloader and fully wipes the userdata
here is the thread link
http://forum.xda-developers.com/goo...orial-how-to-flash-factory-images-lg-t2713833
Click to expand...
Click to collapse
So I try to push volume down and connecting the charger. I reach the fastboot menu but I can't select "start" or something else because without power button I can't validate my choice..

nathan30 said:
So I try to push volume down and connecting the charger. I reach the fastboot menu but I can't select "start" or something else because without power button I can't validate my choice..
Click to expand...
Click to collapse
as i said, you need a computer once you reach fastboot mode, to send the commands.
fastboot reboot - to boot into normal OS
fastboot boot twrp - to boot twrp

opssemnik said:
as i said, you need a computer once you reach fastboot mode, to send the commands.
fastboot reboot - to boot into normal OS
fastboot boot twrp - to boot twrp
Click to expand...
Click to collapse
Oh i didn't understand, thanks a lot it's working
Now I'm just waiting my new power button

i had this **** sorry for swearing i thought its something with my ROM CM13 Nightly I tried the repair service they said that they changed the power button no data was deleted so its probably the button but some one had a guide how to get the phone out that **** using your PC and manual ADB commands ( No program command line only )

I need help with this issue

when this problem reached me it was a meter of replacing the power button itself (it's like stuck there) by the way my phone was still under warranty so they changed it for me
https://www.ifixit.com/Answers/View/208337/How+do+I+fix+a+Nexus+5+Power+Button+Issue
https://www.aliexpress.com/store/pr...821-NEW-Free-Shipping/629458_32289287372.html
https://www.aliexpress.com/popular/nexus-5-on-off-switch.html
If that helped you dont forget to press the thank you button

[Solved] P20 Pro Bricked... Anyone can help me?

First, I was doing a full wipe in TWRP, But I realize I didn't back up my photos/Documents.
So I long pressed the power button to restart.
And now, i got a bricked phone...
Any one can help me?
I'd try this
https://forum.xda-developers.com/huawei-p20/how-to/how-to-how-to-unbrick-clt-l29c432-t3878714
But, I got stuck on the TWRP boot screen.
Also, I'm still available to use the fastboot mode.
Finally, I solve the problem by flashing the e recovery image,and then low level forma data.
Hope it helps for someone have the same issue like me.

zhu911203 said:
First, I was doing a full wipe in TWRP, But I realize I didn't back up my photos/Documents.
So I long pressed the power button to restart.
And now, i got a bricked phone...
Click to expand...
Click to collapse
I have exactly the same Problem. Did you solve it already?

zhu911203 said:
First, I was doing a full wipe in TWRP, But I realize I didn't back up my photos/Documents.
So I long pressed the power button to restart.
And now, i got a bricked phone...
Any one can help me?
I'd try this
https://forum.xda-developers.com/huawei-p20/how-to/how-to-how-to-unbrick-clt-l29c432-t3878714
But, I got stuck on the TWRP boot screen.
Also, I'm still available to use the fastboot mode.
Click to expand...
Click to collapse
Can you still have access to erecovery : volup at power with USB cable plugged. If yes you can try a recovery but you will loose all your data
Can you have access to fastboot : vol down at power up. If yes you can try to flash by adb by following instruction from discussions in the forums.

zhu911203 said:
First, I was doing a full wipe in TWRP, But I realize I didn't back up my photos/Documents.
So I long pressed the power button to restart.
And now, i got a bricked phone...
Any one can help me?
I'd try this
https://forum.xda-developers.com/huawei-p20/how-to/how-to-how-to-unbrick-clt-l29c432-t3878714
But, I got stuck on the TWRP boot screen.
Also, I'm still available to use the fastboot mode.
Click to expand...
Click to collapse
Can you still have access to erecovery : volup at power with USB cable plugged. If yes you can try a recovery but you will loose all your data
Can you have access to fastboot : vol down at power up. If yes you can try to flash by adb by following instruction from discussions in the forums.

Schuchi said:
I have exactly the same Problem. Did you solve it already?
Click to expand...
Click to collapse
yes, I solved the problem, hope it will help you.

A7 could not do normal boot, invalid kernel length

Hi everyone, I am having an issue with my a7 phone, when i power on it says
could not do normal boot, invalid kernel length
Click to expand...
Click to collapse
, then i connected the phone to my computer it constantly restarts and says the same thing
could not do normal boot
Click to expand...
Click to collapse
, can't enter into recovery mode, c'ant enter in download mode, even my pc and odin doesn't recognize the device at all, please help I can't afford a new one.
Thanks in advance.

Just flash stock rom with odin, conect to pc pressing vol + and vol - to get download mode

It doesn't react with + - buttons, that is why i can't flash it

What is the last OS you are running?
If the phone keeps restarting, first connect the phone to your PC via USB cable.
Then
1. Keep Vol+ and POWER pressed.
or
2. Keep Vol- and POWER Pressed.

Thank you but it seems that my motherboard is damaged
Thank you but it seems that my motherboard is damaged

I do not think it has been damaged, try pressing vol + vol- boot at the same time a couple of times and then the third release the vol + i the boot and it will restart in dowload mode. then flash with odin each of the partitions of an original rom.
good luck

juliàcarax said:
I do not think it has been damaged, try pressing vol + vol- boot at the same time a couple of times and then the third release the vol + i the boot and it will restart in dowload mode. then flash with odin each of the partitions of an original rom.
good luck
Click to expand...
Click to collapse
vol - and connect the cable, should bot in download mode

Condolences in your A7 brother
Let me explain to you...our phone have "bootclasspath" in its kernel...if this messed up you cannot do recovery or download mode. In short our phone samsung galaxy a7 2018 is hard breaked and good as dead, im sorry brother we shouldnt have messed with our phone...i understands your feelings:crying:

How do I do that?I have a problem with my phone too

dear my galaxy A750F same problem
showing could not do normal boot inval id kenrel length
i pressing vol down and up and plug in cable after press vol up and there showing massage . press vol down and power button but i many time try it's not working .
than i download obin and ap file and try to downloading but its not working and still not solve my problem .
i need your quick response and kind help

I had the same error appear on my S10 (beyond1lte) and was able to get back in to download mode by [Vol down] + Bixby + Power

h4ck3rc1 said:
I had the same error appear on my S10 (beyond1lte) and was able to get back in to download mode by [Vol down] + Bixby + Power
Click to expand...
Click to collapse
yes , plug into pc... odin flash latest twrp md5 for your device that will get you to recovery and start again

sakho1991 said:
Thank you but it seems that my motherboard is damaged
Thank you but it seems that my motherboard is damaged
Click to expand...
Click to collapse
Hello. Did you find a way to boot into your phone or atleast recover the data in the phone?
I am facing the same issue with my A8+ and i really need the data in it.
Please do let me know if you can somehow help.

PiXi_0301 said:
Hello. Did you find a way to boot into your phone or atleast recover the data in the phone?
I am facing the same issue with my A8+ and i really need the data in it.
Please do let me know if you can somehow help.
Click to expand...
Click to collapse
+1

read pit file by any tool , if the tool can read file then reflash phone if the tool can not read pit file the phone has been damaged