Can't stay in download mode - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

Every time I go into download mode my phone boots itself after a couple of seconds. This started to happen after I downgraded my phone from marshmallow. I was following a youtube video (How to root Verizon Galaxy S5 (SM-G900V) by LightningForce), but I didn't understand what I was doing since I'm very new to this. I got stuck at 9:14. My phone got stuck on the Verizon screen, and I did a factory reset. After that, I saw my phone was downgraded, and it asked me if I wanted to upgrade, which I did eventually because I kept coming across difficulties and gave up.
So now my phone is back to where it was before I started everything (I'm not 100% if it actually is though), but when I go to download mode my phone boots itself after a couple of seconds while I'm there. The only time I was successful staying in download mode was when I left my phone alone overnight and tried in the morning.
Does anybody know how I could fix it?

Related

[Q] Samsung Galaxy S4 sph-l720t (sprint) stuck in bootloop

I just got this phone alittle over a month ago. Today at work, my phone randomly shut down and started continuously restarting. The phone will vibrate and boot the logo, then turn into a black screen, vibrate again, and restart. I had not modified my device at all. Just downloaded your typical apps like anyone else. I already tried taking out the battery and letting it sit and booting in recovery mode and wiping the cache and restoring to factory settings. I also tried to use odin to flash what i think is my firmware onto the device. I wasn't able to figure out the firmware of the device before I did it so i sort of guessed based on the model. Though all i did for this is download what i thought was the firmware, put it in odin3.4, entered download mode and plugged my device in and let it download. I didnt do any rooting or enable debugging/disable debugging before i used odin. Did I miss a step? Does anyone have any suggestions of something I else do. I am so confused on how this happened to my phone!

[Q] No recovery booting and boot loop

Alright, so my dad purchased a new AT&T Galaxy S5 (Unlocked) from NewEgg.com and received it yesterday morning.
At 9am he powered it up, setup his Google account and get to the home screen, no issues.
at 10am he went to Cricket Wireless and received his SIM card, however, the phone was not activated because the "expert" wasn't in until 2pm.
He had the phone charging while on a bike ride and upon returning the phone started doing the boot loop where it shows the Samsung logo for several seconds, goes back, vibrates once, pause, vibrates a second time and repeat.
He went to Cricket after 2pm and the phone was still doing the boot loop and then somehow it stopped. The "expert" took the phone, said it was activated, took the battery off, wrote some numbers down, and from that point on, it has been doing boot loop since.
I've tried getting into the Recovery Mode (Vol Up + Home + Power) and the blue letters recovery booting.... display and I let go and it just goes back to the boot loop process. I've done this numerous times on many devices. The power button is fine as is the volume button.
I've also tried Odin with several Stock AT&T Rom's and each one errors out at system.im.ext4 each time. I've tried this on two Windows 7 machines and one Windows 8 machines with numerous USB ports.
I have also tried doing the firmware upgrade via Samsung Kies 3 and that also fails.
I've been looking up an down for similar problems like this, but can't seem to find anyone else with the same symptoms.
Can't seem to get into recovery mode.
Can't seem to flash a Stock ROM to it.
Can't seem to get Kies to flash Stock ROM either.
Any ideas what I'm failing to try? I've added some screenshots to assist.
Zero2Cool said:
Alright, so my dad purchased a new AT&T Galaxy S5 (Unlocked) from NewEgg.com and received it yesterday morning.
At 9am he powered it up, setup his Google account and get to the home screen, no issues.
at 10am he went to Cricket Wireless and received his SIM card, however, the phone was not activated because the "expert" wasn't in until 2pm.
He had the phone charging while on a bike ride and upon returning the phone started doing the boot loop where it shows the Samsung logo for several seconds, goes back, vibrates once, pause, vibrates a second time and repeat.
He went to Cricket after 2pm and the phone was still doing the boot loop and then somehow it stopped. The "expert" took the phone, said it was activated, took the battery off, wrote some numbers down, and from that point on, it has been doing boot loop since.
I've tried getting into the Recovery Mode (Vol Up + Home + Power) and the blue letters recovery booting.... display and I let go and it just goes back to the boot loop process. I've done this numerous times on many devices. The power button is fine as is the volume button.
I've also tried Odin with several Stock AT&T Rom's and each one errors out at system.im.ext4 each time. I've tried this on two Windows 7 machines and one Windows 8 machines with numerous USB ports.
I have also tried doing the firmware upgrade via Samsung Kies 3 and that also fails.
I've been looking up an down for similar problems like this, but can't seem to find anyone else with the same symptoms.
Can't seem to get into recovery mode.
Can't seem to flash a Stock ROM to it.
Can't seem to get Kies to flash Stock ROM either.
Any ideas what I'm failing to try? I've added some screenshots to assist.
Click to expand...
Click to collapse
You probably have a locked bootloader, i don't have any personal experience but i've heard these american companies are infamous for locked bootloaders - locked meaning that you can't flash anything without using an unlocked BL.
You can look around see if there are any unlocked bls for at&t.

Sm-g900f (uk) galaxy s5 - arrgghhhhh

Can anyone PLEASE help??
My partner opted to do a suggested update on her S5, but didn't notice the wifi was off. The phone seemed to have done the update, but shortly after it rebooted itself, then again, then again. The frequency of reboot got quicker and quicker and now it loops between the Galaxy S5 splash screen and the SAMSUNG logo, but doesn't go any further.
I managed to boot the phone into reset mode, cleared the cache and then did a factory reset, but that did nothing to prevent the boot loop.
I then downloaded Odin (ver 10.3.7) and what I believed to be the correct firmware (G900FXXS1CPLV_G900FVFR1CPJ1_G900FXXU1CPIW_HOME.tar.md5).
Having checked the battery was charged, I followed the instructions of connecting the phone via USB, loading the md5 in the AP, checking Auto Reboot and F-Set time in the options and clicking the Odin Start button. I had removed the battery, replaced it and then booted it into the update mode (Power, Home, Volume Down, then volume up) with the screen confirming I was in the right place (....do not unplug.... etc).
The file loaded, (green bar at top of the Odin window on my PC) and Odin reported success. I then disconnected the phone, booted in recovery mode, reset the cache and then did a clear data, factory reset.
The same symptoms prevail, STUCK IN BOOT LOOP!!!!
The only thing different is that if I plug it into the USB on my PC, after a while the phone tries to turn itself on and goes into either a boot loop or freezes on the Galaxy S5 Splash screen or the SAMSUNG Logo.
I am charging another battery (just in case that is in some way to blame) and will try again to replace the firmware, but could I be missing something, do I need to do anything with PIT (I thought this was all taken care of by Odin using the MD5 file) or is there some other test I can perform that will show if the phone is fried???
MANY THANKS for looking!
ur going correct, try to reflash it again through odin and dont disconnect phone until it boots into system, it is taking some good time, so just wait and dont do anything this time like clearing anything or restoring. i hope ull get success.
THANKS - but...
Thanks Rayzen, I will try the whole thing again, but I think there is something more to this than a firmware fault!
There and gone again
OK, so on the 4th attempt I got the phone to take the firmware using Odin, it reported success and the phone rebooted itself (several times) and eventually appeared to boot to a new factory reset.
I put in a SIM card and entered my email and google account details and left it charging over night. This morning when I tried to use it, the screen froze and then it rebooted itself. Hey presto, the phone is back to square one with a boot loop.
ANYONE (please) got any suggestions?
THANKS
No one??
same here, same symptoms, same feeling.
when flash gone right... i feel lucky.. but for half hour only, rebooted and angain in boot loop.
I cannot even boot in recovery. flashed TWRP. from 5 boots in recovery only 1 success.
When trying to wipe phone in TWRP - it hangs.
still trying to install some other (custom) rom. still no success.
hope never dies
same things happened here! now cant get samsung galaxy s5 to boot...............
Are you sure your using right firmware? as it took me a few versions before it booted last time this happened?
Could any please confirm what is the right firmware for samsung galaxy s5 900F
It took another 6 or 7 attempts, left it over night and was about to trash it when it booted.
I then received a 'software update available' message and tried installing it. First attempt put the phone back into boot loop so I reflashed it again using Odin.
That worked immediately the over the network software update installed and now phone is 100%
Very frustrating but I got there!
glad you fixed it! ive tried three different firmwares and still nothing.
trying this one atm
G900FXXU1ANE2_G900FEVR1AND1_G900FXXU1ANE2_HOME.tar
oh and how long do they take to boot when there are sitting at the samsung glowing screen?>
I'm in UK and used what (I had to guess) was the best firmware.
I'll let you know which version it was when I get home tonight.
BUT I had all the problems with a single version and it eventually came good.
I read somewhere that overwriting a different core (from specific providers) with generic firmware, could lead to a world of pain until it gets full replaced... not sure if that's a good description (or has any fact to it) but it seemed to be re-loading and re-loading and re........ for ages, finally cracked it.
well mines booted now!but getting constant errors about samsung push!
If it'still booted, you'very made progress!
Push issues are mentioned elsewhere and can (eventually be sorted) but if you have a booted phone you should be able to get an over the air software update installed from the service provider....?!

Samsung galaxy s5 not getting past samsung logo screen

Hey guys,
Looking for some advice, I will try and it explain whats happening clearly.
So, last friday while I was using phone it shut down attempted to restart vibrated twice attempted restart again. So in my attempt to repair I booted into recovery mode wiped cache and booted into safe mode this took 2 attempts before finally booting into safe mode. I then reset phone back to factory settings, while it was installing apps from backup, the phone crashed. Eventually I got it all working again with apps that I used on day to day basis minus the appsvthat rarely got used.
Fast forward 6 days back to square one with the restarting. Been working perfectly since I fixed it last week. So what do you guys reckon the issue is?
Thanks
Ps the phone has never been rooted

S5 (klte) bootloop.. cant access recovery.

So, I wanted to get some ideas here before I install the required things to try and sideload the stockrom, but here is the situation..
The wifes S5 on Wind mobile (yea, freedom..) started randomly rebooting a few weeks ago, and up to a couple days ago, become more frequent. I went ahead and booted into twrp and did a factory reset. The phone is completely stock, except for twrp. We do have a nandroid backup on the sd card.
Anyway, the reset seemed to have fixed the issue at first, but shortly the reboots started again, became more frequent as time went on, up until today; wife comes home with the phone stuck in a bootloop. Won't go past the Samsung Galaxy boot screen.
I was going to re-flash the stock rom I got off sammobile or whatever, but the phone wont boot into recovery now. TWRP blue backdrop shows, then phone reboots 5 seconds or so later, and bootloops.
I'm out of ideas. I'll try and do an ADB sideload.. or, Odin, maybe. Luckily the phone is able to get into Download mode.
Could this be hardware related? I have a feeling there's some sort of damage due to her dropping the phone quite often. Never cracked a screen though. Amazing.

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