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Bootloop, nothing works. Please help!!

I have been running Zeus Rom for months now and everything has been fine. Until today. I was just on my phone today and it cut off. Then it went into a boot loop. Won't go past the Samsung screen. I can't find any solution to get the phone into download mode. I have read everything. Switched computers, tried different ports and even switched usb cords. Even tried several combinations of buttons to no avail.
Here is what happens when I try to get into download mode:
I hold down up and down volume, insert battery and then plug in usb cord. I see a spinning wheel and empty battery sign. Then it cuts right back off and does it all over again. Could this be a battery issue or what?
My phone has been bricked before I fixed it with no problems. This has got me stumped. Something is preventing me from getting into download mode and keeping me in boot loop.

Infuser86 said:
Here is what happens when I try to get into download mode:
I hold down up and down volume, insert battery and then plug in usb cord. I see a spinning wheel and empty battery sign. Then it cuts right back off and does it all over again. Could this be a battery issue or what?
Click to expand...
Click to collapse
To get to download mode, be sure to plug in USB before putting the battery in, and keep holding down the volume buttons down for some time.
If the battery isn't showing a charge, though, then let it charge. If it isn't charging, try another cable, and then maybe a new battery.
Sent from my SAMSUNG-SGH-I997 using Tapatalk 2

Tried another battery I had, not fully charged, and the first time I put it in the bottom buttons lit up and the phone booted up, only to cut back off and do the same thing again with the boot loops. It too showed this battery to be completley dead. I am not sure if that is so or not as I have't used this battery in a while.
I am charging both batteries now to try to get them charged. I have one in a wall charger and hte other in the phone plugged into the wall. The one in the phone is still showing no charge as the phone keeps cutting on and off and showing the battery sign witha spinning circle.
I have no idea whats going on but need to find out soon!

jscott30 said:
To get to download mode, be sure to plug in USB before putting the battery in, and keep holding down the volume buttons down for some time.
If the battery isn't showing a charge, though, then let it charge. If it isn't charging, try another cable, and then maybe a new battery.
Sent from my SAMSUNG-SGH-I997 using Tapatalk 2
Click to expand...
Click to collapse
You dont have to plug it in before puting the battery in...i never do...
How i get in download
1) pull battery
2) put battery back in
3) hold volume up + down simutaniously
4) while holding volume plug usb cord into phone
it sounds like he is pretty much doing it the way i do except for the volume he does before putting in battery...should work either way
Could it be a problem with your motherboard/mainboard whatever you wanna call it? When did you get the phone? If its been under a year i would file warranty with samsung...not att. If it is the mother board they probably will never even know its rooted or anything since it wont even turn on...and no software will fix it...
There still is a chance they will find out its rooted and has a custom rom on it...but i think the chances of that are highly unlikely...so i would go for warranty...
Sent from my SAMSUNG-SGH-I997 using XDA

UPDATE:
This is so weird. After nothing working all day, I finally remembered something. About 15 mins before my phone started this today, I dropped my phone while getting out of my truck. I didn't think anything about because I have a double layer case on it. But this evening, I remembered that and I thought maybe that had somethign to do with it. So what else could I do? Bang the phone on the ground again. So I tapped it a few hard times on the ground and sure enough the lights on teh bottom on the phone came on and it booted up and has stayed up.
Apparently the drop this morning has done something inside the phone. Do you guys have any idea what this could be? What could dropping the phone have to do with a boot loop and what could be solved by banging it on the ground again?
Maybe it is luck, but it is working. I just feel it will happen again soon as something is wrong inside the phone.

mg2195 said:
You dont have to plug it in before puting the battery in...i never do
Click to expand...
Click to collapse
Oh, okay, cool. I always do it how I described, so it must work either way. I was just trying to help the OP not go into the battery charging screen.
And to the OP: Bummer, it sounds like you have some busted hardware, but hopefully it will keep working now.
Sent from my HTC_Flyer_P512_NA using Tapatalk 2

Infuser86 said:
UPDATE:
This is so weird. After nothing working all day, I finally remembered something. About 15 mins before my phone started this today, I dropped my phone while getting out of my truck. I didn't think anything about because I have a double layer case on it. But this evening, I remembered that and I thought maybe that had somethign to do with it. So what else could I do? Bang the phone on the ground again. So I tapped it a few hard times on the ground and sure enough the lights on teh bottom on the phone came on and it booted up and has stayed up.
Apparently the drop this morning has done something inside the phone. Do you guys have any idea what this could be? What could dropping the phone have to do with a boot loop and what could be solved by banging it on the ground again?
Maybe it is luck, but it is working. I just feel it will happen again soon as something is wrong inside the phone.
Click to expand...
Click to collapse
loose connection insider vs corrosion issue I mentioned to you earlier.
if you're under warranty, flash a stock package and warranty.
if you're not under warranty, learn how to drop your phone correctly.

Infuser86 said:
UPDATE:
This is so weird. After nothing working all day, I finally remembered something. About 15 mins before my phone started this today, I dropped my phone while getting out of my truck. I didn't think anything about because I have a double layer case on it. But this evening, I remembered that and I thought maybe that had somethign to do with it. So what else could I do? Bang the phone on the ground again. So I tapped it a few hard times on the ground and sure enough the lights on teh bottom on the phone came on and it booted up and has stayed up.
Apparently the drop this morning has done something inside the phone. Do you guys have any idea what this could be? What could dropping the phone have to do with a boot loop and what could be solved by banging it on the ground again?
Maybe it is luck, but it is working. I just feel it will happen again soon as something is wrong inside the phone.
Click to expand...
Click to collapse
Oh my god. the same thing happened to me last night. I've been searching all day trying to figure out how to fix it and I came across your post saying you just banged it on the ground a few times and it started working. I did the same thing and sure enough, it started working again! It's so weird. What I don't get is that I didn't drop my phone at all yesterday. It just did it randomly while i was texting.

[Q] How can I check to see if this is serious?

My HOS is 2 weeks old today. I have rooted it (unlocked BL) and spent many hours with it...kept the stock ROM for now.
I had been using it today and last night and the battery was low so I plugged in the charger (using AC outlet), and left it on. I went back to it 20-25 minutes later and it was extraordinarily hot (I realize this happens...I posted on a thread 2 weeks ago when my phone first overheated to this degree). I saw that like the first time this phone overheated (which was within 48 hours after purchasing it) it wasn't charging. Similarly, this time, the battery showed only ~halfway charged. In my experience, it only takes about 20 minutes to fully charge it... so I was concerned.
I decided to power it off and keep it charging--hoping that the heat would lessen and it would just cool off and charge.
However, I checked it now (perhaps 2 hours later after powering off), and it won't even start. I plugged it in again and waited about a minute (thinking maybe somehow the battery drained), but no luck.
This never happened to me with my last HTC... I have never not had a phone not power up... this seems really weird.
Any suggestions?
Thanks!!!

Mine takes longer than 20mins to charge.....however its not good if it wont even power on, you gotta take it back
Have you tried to power it on by holding the power & volume down button?

frazzeld said:
Have you tried to power it on by holding the power & volume down button?
Click to expand...
Click to collapse
Yes, I tried booting into recovery.. No luck... This is so frustrating because I have not really dropped it or got it wet or anything. I don't like the thought that it might have overheated and caused permanent damage.
I will take it back today I guess... Is 14 days still within the return/replace period? I won't even say I rooted it.. Just that it stopped working. Although I will be irritated to have to unlock the bootloader and root a new one.
I am wondering... Is there a way to power up the phone using ADB??
Thank you

unless your phone is recognised in ADB, No !

Well...good news, I think anyway...I tried taking the SIM card out and it didn't do anything so I left it alone plugged in for maybe an hour.
But.....
When I later looked at it, it was on again, and..it had booted into recovery. I had tried earlier to do this as mentioned above, but nothing happened (using power on and holding the volume rocker down:
So after putting the SIM card in it was fine...go figure.
Thanks for the replies!
Sent from my HTC One-S (rooted), stock ROM

Phone keeps restarting before Samsung logo

I recently flashed CM9 (throwing that out there incase it is of some reasoning but I doubt it) and I've had my phone since November.
I flashed CM9 9/25 Nightly like 2 or 3 days ago (absolutely love it by the way, smoothest build/rom for the Skyrocket thus far) No problems with the Rom I might add, just my phone had just randomly restarted on its own twice while using it (nothing happened, just started right back up).
However the 3rd time, it randomly restarted and never booted back up. It vibrates and then reboots before it even gets to the Samsung screen and reboots/vibrates again (2 second intervals or so). The furthest it gets is like 5 seconds into the CM9 logo and then it'll reboot. It does the usual thin white line as it restarts and just gets stuck there. Can't get to Recovery for more than a few seconds before it reboots (not long enough for Touch to settle and do anything) and it won't get to Download Mode fast enough. Any ideas or any way to get data off /emmc? Don't want to lose a bunch of pictures/videos.
I have a replacement coming within the next days so I have about 2 weeks to either get lucky and get up long enough to save my data or somehow find a solution (doubt it). I already took it apart and swapped screens because I had busted the screen before and put the broken one in incase by some miracle the new one was causing it (no luck).
No water damage or anything to the phone, just randomly rebooted those times while texting or listening to music/what not and now it's pooped.
Any suggestions?
Tried without the battery (via usb/pc or AC source), without sim/microsd, etc. and nothing. Assuming I'm just SOL.
Edit: Side note, I got terrible battery life with this phone. I could only get 2 hours of screen-on time if I was LUCKY on Mobile and maaaybe 3 if I was on WIFI. The most I ever got was 5 hours on WIFI with a 3850mAh Extended Battrey (so even though it was a cheap battery, I'm thinking the phone had a problem from the get-go).

You Could Have A Stuck Power Button. To Fix That Try To Repeatedly Keep Pushing The Power Button Hard To Try To Unstick It. or try taking it apart and clean the power button

vincom said:
You Could Have A Stuck Power Button. To Fix That Try To Repeatedly Keep Pushing The Power Button Hard To Try To Unstick It. or try taking it apart and clean the power button
Click to expand...
Click to collapse
This was my first thought, didn't make a difference no matter how I did it. Appreciate the idea though.

[SOLVED] It is indeed the power button.
I took it apart again and thoroughly mashed the power button plenty and gave it a good few breaths of fresh air.
After that I realized that, I put it back together and realized that if I held the power button right after the phone vibrated it seemed to get to the CM9 symbol more often.
So I mashed the power button a ton more, shook the phone like hell and smashed it against my palm a few times and...it booted! I was able to get everything off of it and reset flash/counter/restore to stock all without ever touching the power button. Screen Timeout @ 30 and using ADB is your friend. Now just to see if it magically works till my replacement gets here lol.

hd2k10 said:
[SOLVED] It is indeed the power button.
I took it apart again and thoroughly mashed the power button plenty and gave it a good few breaths of fresh air.
After that I realized that, I put it back together and realized that if I held the power button right after the phone vibrated it seemed to get to the CM9 symbol more often.
So I mashed the power button a ton more, shook the phone like hell and smashed it against my palm a few times and...it booted! I was able to get everything off of it and reset flash/counter/restore to stock all without ever touching the power button. Screen Timeout @ 30 and using ADB is your friend. Now just to see if it magically works till my replacement gets here lol.
Click to expand...
Click to collapse
i know its sounds too simplistic as to blame a sticky power button and users dismiss the idea because they'll blame themselves, a bad flash, or the rom, but a reboot at a 8-10sec interval is the power button internal switch making contact, sometimes its an easy fix or sometimes it takes more than a few tries, or taking it apart to clean the internals

My phone goes anywhere now from 10 seconds to a full day without having a reboot with continuous vibration at 2 second intervals. Flashed to stable ROM's so that's definitely not the issue. I've had this phone since Christmas 2011 so I'm assuming I don't have warranty? You guys just unscrewed the screws and got into the internals I'm assuming?

[Q] Let battery die after flashing new rom, now it wont charge

Ok guys, I'm in a predicament, I flashed the latest AOKP build 3 (clean flash) flashed IMOv.16 cache/dalvik/permissions and everything worked great. This was around 2pm. I spent the rest of the day just messing around with settings getting it how I liked it. even after several reboots. Now my battery dies around 11:45pm so I plug it up and it vibrates once, the charge screen shows for a second but the charging icon doesnt spin and then cuts off. tried it for about 30 minutes in the wall, 30 minutes from usb from computer, now its been in the wall for about an hour, if I unplug and plug it the phone does nothing, but if I pull the battery put it back in and plug it up to either power source the charge screen shows for about a second and then cuts off, but nothing happens after that any suggestions? has this happened to anyone else? what should I do?

Ok im not sure why that happened, but I fixed it. I pulled the battery, put it back in and instantly help VOL down + Home + Power and I got it tothe screen before Odin. So I was going to flash stock, but I figured if i can get into Odin I can get into recovery so I pressed down to restart phone instead of up to enter odin mode and it restarted and booted up, with a significant charge on it! Phew thought I had done something bad! :victory: My blood pressure is returning to normal now, but why did that happen in the first place? Will it happen again if my battery dies?

davidtb12 said:
Ok im not sure why that happened, but I fixed it. I pulled the battery, put it back in and instantly help VOL down + Home + Power and I got it tothe screen before Odin. So I was going to flash stock, but I figured if i can get into Odin I can get into recovery so I pressed down to restart phone instead of up to enter odin mode and it restarted and booted up, with a significant charge on it! Phew thought I had done something bad! :victory: My blood pressure is returning to normal now, but why did that happen in the first place? Will it happen again if my battery dies?
Click to expand...
Click to collapse
Outstanding work! My blood pressure is down now too.

[Q] GS4G keeps reseting every 3 seconds

Hello.
I have searched the forums about my issue, and although there are a lot of threads about phones rebooting, there was none about such exact problem as I am experiencing. I apologize if I missed a thread which tackled this problem.
Symptoms:
1. my galaxy S 4G reboots about every 3 seconds: it only gets to the very first "Samsung Galaxy S 4G T-mobile" logo, and reboot
2. it is possible to access boot menu (volume up+down), but only for a split second, and phone reboots again
3. rebooting starts as soon as in put battery in, no need to even press the power button
All that started by itself yesterday. I thought it was a mechanical fault with power switch, I opened the phone, unscrewed covers, cleaned everything, but found no mechanical issue. I switched batteries, tried starting the phone of plugged-in charger, on usb cable, took out sd card, sim card, put a different sim card in... and nothing helped.
Phone runs on Gingerbread 2.3, stock by T-mobile, never had any other roms on it. Device is rooted.
If anyone has an idea how to approach this issue, please let me know. Or reply with a link to somewhere I can read more. I was not able to find much on this...
Thank you!
Malarz

The phone sometimes does a reboot loop if u take the battery out of the phone without turning the power off. Just keep trying to turn it on, and eventually it would reboot properly. Take the battery out of the phone for a few minutes, put it back and try to turn it on again. Do this a few times to see if it boot back properly.
Hit the thanks button if it helps. It's my motivator to be more helpful.

gizmoscoop said:
The phone sometimes does a reboot loop if u take the battery out of the phone without turning the power off. Just keep trying to turn it on, and eventually it would reboot properly. Take the battery out of the phone for a few minutes, put it back and try to turn it on again. Do this a few times to see if it boot back properly.
Hit the thanks button if it helps. It's my motivator to be more helpful.
Click to expand...
Click to collapse
Thank you for a prompt reply!
I did take out battery for a long time, well over one hour, and took out sim card and sd card as well. Unfortunately reboot loop started immediately when I placed battery back in the phone. That's what made me think it was a mechanical issue with power button.
I will try keeping battery out a few times again today.
One other thing: the phone had been in hot and humid environment for about 30 minutes before this happened. Not the first time for this phone to experience high humidity, though. However, I did not find any moisture inside the unit.
Malarz

I had this happened to my phone. Just wait it out and keep trying to reboot, it will come around. Take the battery out and put it back on. Keep on repeating this step.
Also, when the phone is on, try to hold the volume - + and power button at the same time to see if u can get into boot mode.
Also u can use hair blow dryer to blow dry area around the power button.
Hit the thanks button if it helps. It's my motivator to be more helpful.

Or, batt is dead...

You have a stuck power button. Take apart the phone and clean the power bottom with compressed air. Then rapidly push the button in and out for a while.

Resolution:
I took the phone apart, and checked the power button (which had been my first guess), and was seemingly all right.
The battery was also not the issue, as I tried 3 different batteries.
Having no other choice, I put the battery back in, and let the phone happily reboot at its own leisure. After over 20 reboots, the system came on. Then a few minutes later the device rebooted again, and the loop started all over. After a while it booted up again. This time I did not wait for the device to reboot by itself, and I switched the phone off with power button, and then turned back on, and it booted normally. Repeated this once more - normal boot again. One more power off, and I entered the boot menu and did factory reset. Once the stock reinstalled, everything would work perfectly - no more issues with boot loop.
So it seems to me as a software problem more than anything else.
Side note: for the last several weeks the phone displayed strange behavior, that is the screen would light up for no reason by itself, and quickly go off. Sometimes it happened once every few minutes, sometimes it happened several times a minute. Did it have anything to do with the boot loop? No idea. But it strengthens my hunch about a software issue, as that behavior also went away after factory reset.
Sorry for the lengthy post, but since I have not found a similar case anywhere in the forums, I though someone might find this interesting. I do not deal with phones except as a user, but some of you guys do it maybe professionally, so maybe this will be a curious puzzle for you to solve.
Malarz

It sounds like Gremlins....
Sent from my Amazon Kindle Fire using xda app-developers app

Do you have notifications set up? It could notify that u have incoming messages such as a text or an email.
Hit the thanks button if it helps. It's my motivator to be more helpful.

Malarz said:
Resolution:
I took the phone apart, and checked the power button (which had been my first guess), and was seemingly all right.
The battery was also not the issue, as I tried 3 different batteries.
Having no other choice, I put the battery back in, and let the phone happily reboot at its own leisure. After over 20 reboots, the system came on. Then a few minutes later the device rebooted again, and the loop started all over. After a while it booted up again. This time I did not wait for the device to reboot by itself, and I switched the phone off with power button, and then turned back on, and it booted normally. Repeated this once more - normal boot again. One more power off, and I entered the boot menu and did factory reset. Once the stock reinstalled, everything would work perfectly - no more issues with boot loop.
So it seems to me as a software problem more than anything else.
Side note: for the last several weeks the phone displayed strange behavior, that is the screen would light up for no reason by itself, and quickly go off. Sometimes it happened once every few minutes, sometimes it happened several times a minute. Did it have anything to do with the boot loop? No idea. But it strengthens my hunch about a software issue, as that behavior also went away after factory reset.
Sorry for the lengthy post, but since I have not found a similar case anywhere in the forums, I though someone might find this interesting. I do not deal with phones except as a user, but some of you guys do it maybe professionally, so maybe this will be a curious puzzle for you to solve.
Malarz
Click to expand...
Click to collapse
Hardware not software. You had a stuck power button. By forcing the reboot with the power button you unstuck it. If you don't believe it research Occam's razor. Glad you got it fixed(unstuck) though.:victory:
EDIT: Here are some other people who have had the same issue on samsung phones.
Stuck power button
Stuck power button
Stuck power button
If you need any more let me know. lol