Hard key map - Galaxy S 4 Q&A, Help & Troubleshooting

Hi,
I'm having issue with a GT-I9505 S4 phone after droped it in the water, key combinaison to turn the phone up are altered, if i only push "power" button, the phone boot in recovery mode, if i push "volume down + home + power" the phone boot android in normal mode.
I've tryed to re-install samsung stock rom, the problem persist, i've tryed to install cyanogenmod 12 and problem still here too.
It's seem the water have corrupted a firmware (maybe qualcomm's firmware?) so i don't find which one !
When powering the phone with "volume down + home + power", all work just fine !
I've checked if some buttons are stuck, so it's seem they work fine too.
Partition mapping seems good, using adb to restart the phone in recovery, download or normal mode work fine, so if i try to reboot from android's menu, it boot in recovery mode.
Does anyone have some help or infos to help me to solve this problem?
Is it possible to "re-map" the key combinaison for turning up the phone?
Thank in advance
Kev

Related

Cant boot into recovery of fastboot mode

Hi,
I flashed TWRP and CM 10.1 but then I got problems with the phone not charging (still having that issue but will post it in another thread). Anyhow I decided to reflash the the stock rom and during the flash the phone randomly restarted. Luckily for me I was able to boot up and everything is working fine. the only problem is i can now longer access my system recovery (power and vol down) or fastboot mode (power and vol up). When trying power and vol down the phone starts up as normal. when trying power and vol up the phone vibrates, the bottom 3 keys light up and then nothing. I have to then hold down the power button to turn the phone off and back on. I hope someone can help me troubleshoot this as I have no idea what to do.
Many Thanks!
Mo
mo123456789 said:
Hi,
I flashed TWRP and CM 10.1 but then I got problems with the phone not charging (still having that issue but will post it in another thread). Anyhow I decided to reflash the the stock rom and during the flash the phone randomly restarted. Luckily for me I was able to boot up and everything is working fine. the only problem is i can now longer access my system recovery (power and vol down) or fastboot mode (power and vol up). When trying power and vol down the phone starts up as normal. when trying power and vol up the phone vibrates, the bottom 3 keys light up and then nothing. I have to then hold down the power button to turn the phone off and back on. I hope someone can help me troubleshoot this as I have no idea what to do.
Many Thanks!
Mo
Click to expand...
Click to collapse
Recovery is accessed by volume up, volume down, and power held down simultaneously for approximately 10 seconds or until you see recovery. Not sure about fastboot. Have you tried to see if your in fastboot by using adb and checking for fastboot devices. You may be getting fastboot mode. I forget if it actually said anything on the screen. Good luck!
mo123456789 said:
Hi,
I flashed TWRP and CM 10.1 but then I got problems with the phone not charging (still having that issue but will post it in another thread). Anyhow I decided to reflash the the stock rom and during the flash the phone randomly restarted. Luckily for me I was able to boot up and everything is working fine. the only problem is i can now longer access my system recovery (power and vol down) or fastboot mode (power and vol up). When trying power and vol down the phone starts up as normal. when trying power and vol up the phone vibrates, the bottom 3 keys light up and then nothing. I have to then hold down the power button to turn the phone off and back on. I hope someone can help me troubleshoot this as I have no idea what to do.
Many Thanks!
Mo
Click to expand...
Click to collapse
Try search for a app called Quick Boot on play market.

Problem with Volume Button, Software or Hardware?

Hello! Got a problem with my Galaxy S 4. Removed T-Mobile brand, flashed the stock ROM MH5 and unlocked the device by code.
Do not know if the problem existed before, at least following phenomenon occurs: after a certain time (depending on how long the battery was out - more on that below) the volume down button no longer responds - initially Vol button respnds normally, suddenly the volume turns down and I can only press volume up, volume down does not respond anymore - when I reboot the device, it always boots in the mode where I can push vol up to install a custom Rom or volume down for restart - but neither Vol up nor Vol down respond. If I restart the device with volume up + Home + Power button, I can not get into recovery but in Safe Mode.
Only when I take out the battery and wait (approx half an hour), the unit boots normally and the error occurs again after some time...
I also made a factory reset - no success. Somebody knows this phenomenon? Thank you.
Maybe
liquidspace said:
Hello! Got a problem with my Galaxy S 4. Removed T-Mobile brand, flashed the stock ROM MH5 and unlocked the device by code.
Do not know if the problem existed before, at least following phenomenon occurs: after a certain time (depending on how long the battery was out - more on that below) the volume down button no longer responds - initially Vol button respnds normally, suddenly the volume turns down and I can only press volume up, volume down does not respond anymore - when I reboot the device, it always boots in the mode where I can push vol up to install a custom Rom or volume down for restart - but neither Vol up nor Vol down respond. If I restart the device with volume up + Home + Power button, I can not get into recovery but in Safe Mode.
Only when I take out the battery and wait (approx half an hour), the unit boots normally and the error occurs again after some time...
I also made a factory reset - no success. Somebody knows this phenomenon? Thank you.
Click to expand...
Click to collapse
Try replacing the battery with a different one then see if it works. if not do this:
Download the stock MH5 ROM from SAMMOBILE
Open Odin
Flash this ROM with Odin
make sure that only Auto Reboot and F. Reset Time are the only options ticked
I personally havent had this problem but it might help
EDIT: This sounds like a software issue but if it keeps happening it may infact be a hardware issue with the device itself
Thanks, but I already flashed Stock MH5 and now MH7 T-Mobile branded - when the device is off for about an hour, the S4 boots normally and the Volume up and down works fine, two minutes later Vol down doesn´t respond anymore...it´s weird
I still don´t belive it - tried the battery from a mate´s S4 - mine works fine again, no Vol button errors or startup problems...can somebody explain this to me...crazy ****...

BOOLOOP

Hi all, I have been using CM for a long time, but I accidentally deleted the system and data and all the partitions, now I am trying to recover and I am not able to recover. What strikes me is that I try to enter the TWRP mode, I can not, or even Download Mode, nor can I run the adb command (because the phone is off). What happens is that also my power button has problems, when I put the battery, the cell phone turns on automatically, the question that I ask is will it interfere in not booting in recovery and download? Incidentally, when I put the battery at the same time I click on the Home and Volume-, it opens the warning screen on custom Os, but when I press the volume+ button nothing happens besides restarting and flashing in the bootlogo.
Desperately I need your help.
There's not much you can do without download mode. And if the power button is the problem, then I suggest fixing it somehow.
Pwnycorn said:
There's not much you can do without download mode. And if the power button is the problem, then I suggest fixing it somehow.
Click to expand...
Click to collapse
Fixed
Power Button problem!
Everything is fine now

A5 2015 (SM-A500FU) bootloop, can't go in recovery or download mod!

Good evening everyone, i'm having a serious issue with my samsung A5. It was rooted, with custom recovery and custorm rom (Android 6.1 i think).
2 Days ago, a chewingum got stuck on my screen. I tried to remove it with nail paint remover, it did the trick but then my home button stopped working: the button itself can be pressed normally, but it won't work. I also experienced randomly long home button press actions, so i decided to turn them off. I thought that few drops of liquid may actually have gone beneath the home button. Few hours later, i experienced more issues: volume going up without anyone pressing the button (and the buttons are not stuck at all, and that side never got close to liquids), power button not doing his job etc. I tried to do a soft reset by recovery (cleaning cache and dalvik) but i ended up aslo factory resetting it for a distraction. Reconfigured the device, everything was back to normal (except the home button) but then i also experienced a couple of random volume up and crashes upon making phonecalls. SO i decided to reflash the entire rom, downloaded it + gapps, put into the decide, rebooted in recovery. Wipe cache, dalvik and also system i think, then i tried to intall the zip files but they were not there (probably i should have avoided wiping system, i get confused sometimes). I turned the device off and on, and now i'm stuck on bootloop (regular mode), can reboot it but it seems i can't go in either recovery or donwload mode (so no odin flash). Device is not recognized by the Pc. I keep rebooting it with power + home + volume down and as soon as i see the screen turn black, i try to press again volume up + home to enter recovery, but it goes straight to bootloop.
Any idea on how getting out of this situation? Thank you in advance
Dharmost said:
Good evening everyone, i'm having a serious issue with my samsung A5. It was rooted, with custom recovery and custorm rom (Android 6.1 i think).
2 Days ago, a chewingum got stuck on my screen. I tried to remove it with nail paint remover, it did the trick but then my home button stopped working: the button itself can be pressed normally, but it won't work. I also experienced randomly long home button press actions, so i decided to turn them off. I thought that few drops of liquid may actually have gone beneath the home button. Few hours later, i experienced more issues: volume going up without anyone pressing the button (and the buttons are not stuck at all, and that side never got close to liquids), power button not doing his job etc. I tried to do a soft reset by recovery (cleaning cache and dalvik) but i ended up aslo factory resetting it for a distraction. Reconfigured the device, everything was back to normal (except the home button) but then i also experienced a couple of random volume up and crashes upon making phonecalls. SO i decided to reflash the entire rom, downloaded it + gapps, put into the decide, rebooted in recovery. Wipe cache, dalvik and also system i think, then i tried to intall the zip files but they were not there (probably i should have avoided wiping system, i get confused sometimes). I turned the device off and on, and now i'm stuck on bootloop (regular mode), can reboot it but it seems i can't go in either recovery or donwload mode (so no odin flash). Device is not recognized by the Pc. I keep rebooting it with power + home + volume down and as soon as i see the screen turn black, i try to press again volume up + home to enter recovery, but it goes straight to bootloop.
Any idea on how getting out of this situation? Thank you in advance
Click to expand...
Click to collapse
Sadly, no software can fix broken hardware, it's probably best, as you'll now know, not to pour chemical liquids onto electrical devices, and just what kind of chewing gum exists that requires such extreme cleaning measures from a flat, non-porous surface I'll never know.
That said, as for rebooting, a force-restart on your device *doesn't* require you to hold Home+Volume down+Power, that should only reboot you to bootloader/download mode.
Try again only holding Power+Volume Down. THEN, when your screen goes fully black, immediately switch to Power+Volume up+Home.
You should then boot into recovery mode without any loop.
Good luck!
D4ND310 said:
Sadly, no software can fix broken hardware, it's probably best, as you'll now know, not to pour chemical liquids onto electrical devices, and just what kind of chewing gum exists that requires such extreme cleaning measures from a flat, non-porous surface I'll never know.
That said, as for rebooting, a force-restart on your device *doesn't* require you to hold Home+Volume down+Power, that should only reboot you to bootloader/download mode.
Try again only holding Power+Volume Down. THEN, when your screen goes fully black, immediately switch to Power+Volume up+Home.
You should then boot into recovery mode without any loop.
Good luck!
Click to expand...
Click to collapse
I didn't dip the smartphone into a cup of liquid, i just took a piece of cotton, poured a bit of nail pain remover (don't know the exact name in english, sorry) on it and then scratched the part where the chewing gum was on (on the soft touch back key, which works 100% fine).
I am trying using the method you described, but it seems i can't go into recovery. Maybe i'm not quick enough! will keep trying. If you have any other suggestions i will be glad to hear that!
You could try to make a USB jig, or buy one off of eBay. They're really cheap. Its basicly just a resistens that force the phone to download mode. It have worked fine for all my Sammy's including A310 so it probably works for A (15) series as well.
Just put it in USB connector and press power for a few secs and you should be in download mode.
Just an idea if everything else fails
Sent from my Honor 5X using Tapatalk
go to samsung
A hardware problem could NEVER be fixed by software ways... Unfortunatelly...
It seems that liquid made some changes on your PCB (maybe dissolved some isolators inside??)...
Anyway, go to service or replace it!
Hello everyone, i've updates about my problem and i would be glad if you could kindly point me in the right direction.
I purchased an USB Jig as suggested by one of you guys, i forced the device into dowload mode and installed a fresh stock firmware + custom recovery. When i try to boot i get a bootloop on samsung logo, and can't go into recovery probably because of the broken home button. I would like to enter recovery by using ADB command, i used to do it in the early days of Android but i'm a bit rusty and all the guides tell the procedure from an already functioning device. Since i can start it properly, is there a way to reboot it in recovery via ADB?
Thank you in advance
Dharmost said:
Hello everyone, i've updates about my problem and i would be glad if you could kindly point me in the right direction.
I purchased an USB Jig as suggested by one of you guys, i forced the device into dowload mode and installed a fresh stock firmware + custom recovery. When i try to boot i get a bootloop on samsung logo, and can't go into recovery probably because of the broken home button. I would like to enter recovery by using ADB command, i used to do it in the early days of Android but i'm a bit rusty and all the guides tell the procedure from an already functioning device. Since i can start it properly, is there a way to reboot it in recovery via ADB?
Thank you in advance
Click to expand...
Click to collapse
if you can access Download mode try this. hold volume down+home+power button. once the screen is black simply turn your finger to volume up while still holding the power and home button then release when SAMSUNG appears.
Sent from my SM-A500F using xda premium
babyyeobo14 said:
if you can access Download mode try this. hold volume down+home+power button. once the screen is black simply turn your finger to volume up while still holding the power and home button then release when SAMSUNG appears.
Sent from my SM-A500F using xda premium
Click to expand...
Click to collapse
Thanks for the suggestion, but still couldn't get into recovery. I think the home button is really broken, therefore i need to access recovery in another way.
Cause i flashed the stock samsung firmware twice with odin and i can't still start the phone properly, every guide says that a wipe of cache and dalvik solves the situation. But i need to get into recovery for that.
I can't go into recovery with normal procedure probably because the home button is not working, and all the guides about adb commands say that you need to plug in your phone when it has fully started. So i either need a way to force the device into recovery with my computer, or a firmware that once flashed doesn't give me bootloop

Can't get into recovery to save my life!

Guys, I'm wanting to get into recovery mode to wipe my Dalvik cache but for the life of me I can't get to it. I'm doing up+power+home and I go to screen saying 'Downloading do not restart target'. I guess this is download mode. How do I turn this off?
For kicks I tried down+power+home and it asks me if I want to enter download mode. Also tried up+down+power+home but this just does a normal boot.
I know this is probably something really basic but I just can't get in. I did have KingRoot installed a while back. Could this have caused the problem? Any help is greatly GREATLY appreciated. Thanks!
Hold power and volume down, then press volume up when the OS warning screen appears = download mode.
Hold power and volume up = recovery.
Don't bother with the home button. You don't need it. Should the key combinations not work correctly, you may have bad buttons on the motherboard.
Thanks for the quick reply. I double-checked my volume buttons and they work as they should (up = louder; down = softer). I tried power + up and still get the download mode screen. I even tried adb to boot into recovery and it brings me to that same 'Downloading do not restart target' screen.
Prior to writing my post above I tested my S4 to make sure I was giving correct information. Both key sequences worked on my S4.
The only thing I can think of is that you have a hardware issue with your volume down button. To test, try pressing and holding power without touching a volume button. If you enter OS warning mode without pressing a volume button, then your volume down button is worn out and needs to be replaced.
My reasoning is this.
Button failures are the most common issue with the Galaxy S4.
You instantly enter download mode by pressing power and volume up while being unable to enter recovery at all. This means you're skipping a step in accessing download mode, which wouldn't happen if all the buttons were working correctly.
Maybe, but shouldn't my phone go into recovery when I send the command to enter recovery from adb? It just reboots and goes to downloading. My buttons work fine when using the phone when android is up so I'm doubting that it is a hardware issue.
It should, but something is interfering with that. I'd go back to stock using Odin, simply to ensure all parts of the firmware match. Then see if you can get into the stock recovery with the key combo. If you are able to, then you can restore TWRP and flash a custom ROM. Otherwise the device needs to be looked at.
Thanks for the reply. I'm running the stock os without root. All I really want to do is wipe Dalvik cache. Can I do that from adb?
Yep.

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