[Q] Download mode boot loop - Galaxy S 4 Q&A, Help & Troubleshooting

Hi, I'm hoping someone can advise on a strange issue I have with my phone. If I power down the phone then it powers back up in download mode. If I take out the battery then put it back in, the phone will automatically power up in download mode.
While in download mode, if I hold the power down for 5 seconds to shut down the phone then quickly hold vol down + home + power then the phone loads to the "Warning!! a custom OS can cause critical problems in phone and installed applications" screen. From here, I can press vol down to "Cancel (restart phone)", after which the phone boots normally and everything appears to be fine. All the buttons work perfectly and there doesn't appear to be anything else wrong at all. However, powering down will again cause the phone to go into download mode.
The phone was previously rooted, but while trying to repair the issue I have flashed a stock firmware and tried a factory reset. This doesn't appear to have changed anything though.
In download mode the Binary Status is now Samsung Official and the System Status is Official too (which I'm hoping means I won't be refused a warranty repair). I think the phone may have got a little damp at the Reading festival last weekend, but I find it strange that nothing else appears to be wrong with the device apart from this weird boot loop.
Any suggestions to try something before I take it back to the shop would be appreciated. Thanks in advance for any help or advice.

Related

Cannot boot even into download mode after changing Fast Dormancy setting

Hi,
I thought I could enter the Hidden Menu and change the Fast Dormancy setting into disabled, so I did it and wanted to reboot my phone. The phone turned off, and was doing its boot up procedure, while it started behaving abnormally. The LG logo popped up for about 5 seconds (so it didn't leave the bootloader), turned off for 10 seconds and then again the whole process repeated. I thought that was a bootloop, so I turned it off, entered Factory Reset menu, chose appropriate options and waited for the reset, but the phone didn't perform the action. Then I tried to get into download mode, but to no avail - the phone kept going with bootloop. I'm still struggling to do this; the only menu I could get into was the Factory Reset one.
Could anyone help me get my phone back into function?
D802, 20G stock
Thanks in advance!
That's weird. I always disable fast dormancy after a reset or a new rom flash and I've never had any issues.
What comes instead of download mode? If nothing, Are you sure you're doing it correctly?
Press and hold the power button for 10-15 seconds.
Plug the phone into the cable, then press and hold volume up and plug the cable into the computer. That should trigger download mode.
Thank you for your help.
I know that's weird, I've entered Download mode numerous times using the combination that you provided and can't do it this time. The strangest thing actually is that the factory reset menu does show up (though it does nothing), while Download mode does not - it seems to be actually unaffected by using the combination and is still stuck in a bootloop. I have no idea what steps should I take in order to recover my phone.
I forgot to mention that the phone wasn't even rooted then, which makes it even more mysterious...
Ouch! Well what comes up when you enter download mode? Fastboot? Black screen?
If you're still covered by warranty take it for a replacement. I doubt fast dormancy alone has messed up your device. If it truly has, then try booting the phone without a sim card.
Normally when I insert the USB cable with vol up button pressed, the LG logo shows up, then the notification of Download mode and finally the Software Update screen. But this time, only the LG logo shows for about 5 seconds, as if I normally booted it using Power button and does not get me into neither Download nor Fastboot mode.
Well, I took a look at other options in this hidden menu, but still, could it brick that hard even then?
I doubt whether I'm still eligible for a replacement, as the device had been rooted already (though it's not at the moment). The whole process also takes quite a lot of time, which is why I wanted to avoid it. Is there any method to bring it back to life?
I wanted to revive my phone using the method linked with flashing the whole partitions onto my phone, but Ubuntu didn't even notice that any drive was connected...
Am I doing something wrong? I mean e.g. is the combo Vol Up + cable still the same in D80220G? Is there any other way of accessing the phone through my computer? Can I somehow stop this bootloop from continuously happening? Doesn't the fact that I can get into Factory Reset menu help in any way?
Thanks for your help in adavnce!

Galaxy S4 i9500 Bootloop without Recovery Mode

Hi,
The problem I have is really very common to most Samsung Galaxy users, but I haven't found any solution to my particular problem. Well, basically my Samsung Galaxy won't get out of bootloop. It just won't go beyond Samsung Galaxy SIV I9500 screen. The phone never did this before this. The phone did, however, rebooted occasionally by itself when running normally.
My phone is rooted, but it runs the official version of Lollipop for Galaxy S4. I had to factory reset my phone one day, and I decided it to reset from the Recovery Mode. After successfully resetting the phone, it booted as usual. Soon after it suddenly turned off, and went into this complete bootloop and would not stop until I remove the battery. Whenever I insert the battery back in, the phone starts by itself, without me pressing any button, and goes in the bootloop again. I can only enter the Download Mode that too for a couple of seconds. When entering the download mode I don't have to press the power button.
Is there any solution to this? I am assuming that my power button suddenly failed. The power button is definitely not stuck. I have opened the entire phone and cleaned the motherboard, and rechecked, it still showed the same problem.
Really appreciate any kind of help.
Hardware issue. Lightly tap the side of the S4 against a table and see if that temporarily frees up the button. Regardless of the end result, you'll need to replace the power button.
Hi,
No need power button to boot in recovery.
Just hold Home+Volume up should do the trick.
@Yoanf_26: How do you expect the phone to get into recovery without turning it on? Volume up and Power are all that's needed to get into recovery. It's the Home button that is optional.
Try a different battery (ask a friend or something if possible). I had similar issues on an i9100 lately. It could only boot to download/recovery mode and was even producing write errors. Looked like brickbug first but was bad battery indeed. It starts slowly with weird behavior and you think you've just messed the rom and just need to reset but it gets worse and worse until you're stuck with download mode only. If you have a spare battery in range its worth a try for sure.
Strephon Alkhalikoi said:
@Yoanf_26: How do you expect the phone to get into recovery without turning it on? Volume up and Power are all that's needed to get into recovery. It's the Home button that is optional.
Click to expand...
Click to collapse
Hello.
I already to start my S4 without power button must just with Volume up and home.
I test with Volume up with power, and my S4 start to recovery.
Differents methods are good to start to recovery. May not for all S4
Guess what? You have a faulty power button, because being able to start the device in any mode without the power button is simply not possible. I tried it just now. Also, if Samsung themselves require the power button to enter recovery or download mode it's illogical to not need it on what is (broadly) the same device.
My power button is good. I test with a custom recovery.
May be not possible with stock. I don't test with stock.
I'm not running stock anything on my I9505. TWRP 2.8.7.0 and CM 12.1 Optimized (currently) installed here. To access Download Mode requires Volume - and Power (Home optional). Accessing Recovery requires Volume + and Power (Home optional, again). Safe Mode requires pressing Volume - and Power, and holding down Volume - throughout the boot process.
As you can see, all functions require power. The fact yours doesn't is not normal.
Maybe, but my S4 is good.
If you think so, who am I to try and persuade you otherwise? When you do encounter an issue with that button, just think back to this thread rather than making a post about it. That way we can both avoid the inevitable "I told you so" that will come out of my mouth.

S7 bootloop

Hello,
I just received my new S7 4GB+64GB.
I fully charged it and booted ok. I connected it to the local WiFi and started downloading the new OTA update. When it reached about 40%, it rebooted and started bootlooping. I cannot even turn off the phone.
Check the attached video.
Any ideas?
thx
I'm afraid to say that your device might be broken.
Just like one of the many users, elephone failed to ensure proper quality control before dispatching the phones.
I would recommend you to ask for a refund and if you're still keen then make another new purchase of this device.
Try this for boot loop
You can try running the phone down till it is empty and then recharge it and see if it comes out of the boot loop or 1. Hold "Power" and "Home" buttons to turn off your Android phone, you will enter the Recovery mode
tey to exsaust battery, flash new rom according to the info on Development thread
I have already tried that, but it keeps restarting even if recovery is loaded. It looks like power button is always pressed.
thx
jon feaver said:
You can try running the phone down till it is empty and then recharge it and see if it comes out of the boot loop or 1. Hold "Power" and "Home" buttons to turn off your Android phone, you will enter the Recovery mode
Click to expand...
Click to collapse

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

Samsung Galaxy s4 sgh-i337 boot recovery loop

Hello,
I have an S4 from ATT and after it ran out of battery last night it is now booting directly to recovery mode.
When I plug the charger it wont show the battery charging icon, it just makes a short vibration every like 10 seconds and the screen remains black.
I removed the battery and put it back again and tried to press volume down + power button to access the other mode but it wont allow me.
Since It just allows me to access the recovery mode, I performed a wipe data reset and it when through successfully but when phone restarted it took me back to the recovery screen again.
What can I do to fix this?
darcon_pr said:
Hello,
I have an S4 from ATT and after it ran out of battery last night it is now booting directly to recovery mode.
When I plug the charger it wont show the battery charging icon, it just makes a short vibration every like 10 seconds and the screen remains black.
I removed the battery and put it back again and tried to press volume down + power button to access the other mode but it wont allow me.
Since It just allows me to access the recovery mode, I performed a wipe data reset and it when through successfully but when phone restarted it took me back to the recovery screen again.
What can I do to fix this?
Click to expand...
Click to collapse
Boot up into recovery mode and look if it shows errors of any kind. There is a possibility that your phone may have an emmc failure. Its a hardware issue and not software related. There is a small chance it could be as simple as getting a new battery but I doubt it.

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