Samsung Epic 4G not booting up after System Format - Android Software/Hacking General [Developers Only]

I followed the following steps a friend sent to me to root my phone.
"1. Go into clockwork recovery and go into "mounts and storage" and do system, data and cache FORMAT. Then do the data, cache and dalvik wipes."
Now my phone will not boot up past the Samsung screen where it seems to freeze every time i turn it on. Can someone guide me on getting back powered on? If not, would a Sprint store take a look at it if its not booting up?
Please assist Asap guys, I appreciate it!!

No boot after format
jmad34 said:
I followed the following steps a friend sent to me to root my phone.
"1. Go into clockwork recovery and go into "mounts and storage" and do system, data and cache FORMAT. Then do the data, cache and dalvik wipes."
Now my phone will not boot up past the Samsung screen where it seems to freeze every time i turn it on. Can someone guide me on getting back powered on? If not, would a Sprint store take a look at it if its not booting up?
Please assist Asap guys, I appreciate it!!
Click to expand...
Click to collapse
I see you still have no reactions about this, but did you found a solution yet?
I did the same and no startup anymore. so we must never format anymore uh
If you know something please sent me a message, also when you got to repair it at the shop

i know nothing about the epic in particular, but i know this about systems. you wiped the /system partition of the internal flash storage. the system partition holds, well, the system. android itself. you completely erased it. its like taking your pc, erasing the entire hard drive, and complaining that it wont turn on past the BIOS.
so, you could use the tool that sprint and samsung provide to go back to a completely stock system, including loosing clockwork recovery, or you could flash a custom rom, because a custom rom is a system, and it would fill the /system partition back up with usable data. hope this helps you understand android in general a little better.

EDIT: oops, i hit the button twice. sorry for the double post then.

Related

[Q] [ISSUE] freezes while phone is in stand-by and while using apps

hey all,
on friday I rooted my NS again to check out cm7 rc1. before i was totally stock @ 2.3.2. friday evening i wanted to show my iphone friends the nexus s with cm7. the first one took it and did take some photos. then he smiled and gave it back to me. force close: SORRY: Android.process(???) has stopped unexpectedly.
this error was looping all the thime. i pressed okay and one sec later it was there again. i tried to flash the rom again in recovery, but the error was still there. i did date and cash wipes and some factory resets and then the error was gone.
on sunday i was travelling home on train and suddenly the error was back. i tried again some wipes and then i deceided to restore my nandroid backup. so i was back on 2.3.2. during sunday afternoon and evening i got these errors:
- NS is freezing while it is in standby... if i grab the phone and want to unlock it but the display keeps black -> i have to put out the battery..
- NS is beside my keyboard and suddenly all four buttons are on. display is still black. unlock not possible--> battery again
- NS is freezing while using facebook or twitter app
today... i unrooted it again and went back to a nandroid (2.3.1) guided _here_.
after unrooted again NS wanted to update to 2.3.2 which i confirmed.
about to hours later the errors i explained came back.
am i the first one who bricked NS?
please give me some help how to get it back working correctly, because i love this phone so hard.
I did another factory reset and now the phone is hanging at the google Logo. The four buttons are powered.
This is looping, too.
Yesterday I tried some things to kill these errors. I did:
- factoy reset (in settings menu)
- fastboot erase userdata 2x
- wipe cache, wipe data, wipe devliak
Today the phone was with out a problem, but just a moment ago I wanted to unlock it by pressing the power button but the display didn't react as usal. It is still black and the only thing I can do is to take out the battery....
Last step I can do is to send it back to my girlfriends sister in US so that she can bringt it to Samsung US to get it serviced.
"bricking" the phones involves the phone not being able to turn on or do anything, period. your phone isnt a brick. after doing a "factory reset" you want to reflash whatever rom you are using. it seems like youre having problems with a bad app or some bad data.
thx simms22. i just flashed the newest cm7 nightly with rom manager (incl. wipe). i set up all my apps and 20 min later the error come.
to figure out if it is a bad app problem i do a factory reset now and won't log into google account and see if the error appears.
simms22 said:
it seems like youre having problems with a bad app or some bad data.
Click to expand...
Click to collapse
i did a factory reset and skipped google setup after first boot.
i just entered sim code and let nexus s in idel mode.. about 15 mins later the four buttons were lightened but i couldn't unlock the phone. battery out... and i could power it on.
so it's some kind of bad data problem? but how to find and/or clean this bad data? thx again for your help.
edit: I found a lot on google for "full wipe bad data". I'm reading now! But I may have to ask you something
edit2: in recovery (cwm3.0.0.5) I did: format system, format data, format cache and format sdcard. then i mounted usb and copied this nandroid 2.3.1 to it and flashed it. I booted and installed system update 2.3.2. now testing again without apps.
edit3: the hole day no problems. I only installed twitter and in the evening 2.3.3 manually. This morning again the phone was not unlockable. I had to take out the battery... on my way to work I did a wipe from stock recovery but shortly later the phone freezed while I used the slider to unlock it. oh man that sucks I thought it was fixed.
I make some coffee now and start google'ing. If you have some tipps, please throw them to me.
maybe reflashing radio?
stiefa00 said:
i did a factory reset and skipped google setup after first boot.
i just entered sim code and let nexus s in idel mode.. about 15 mins later the four buttons were lightened but i couldn't unlock the phone. battery out... and i could power it on.
so it's some kind of bad data problem? but how to find and/or clean this bad data? thx again for your help.
edit: I found a lot on google for "full wipe bad data". I'm reading now! But I may have to ask you something
edit2: in recovery (cwm3.0.0.5) I did: format system, format data, format cache and format sdcard. then i mounted usb and copied this nandroid 2.3.1 to it and flashed it. I booted and installed system update 2.3.2. now testing again without apps.
edit3: the hole day no problems. I only installed twitter and in the evening 2.3.3 manually. This morning again the phone was not unlockable. I had to take out the battery... on my way to work I did a wipe from stock recovery but shortly later the phone freezed while I used the slider to unlock it. oh man that sucks I thought it was fixed.
I make some coffee now and start google'ing. If you have some tipps, please throw them to me.
maybe reflashing radio?
Click to expand...
Click to collapse
are you using any of the custom kernels?
no, I'm using stock kernel and never flashed a custom kernel.
stiefa00 said:
no, I'm using stock kernel and never flashed a custom kernel.
Click to expand...
Click to collapse
im going to have you try wiping once again. wipe data/factory reset. only this time reupdate to android 2.3.3 right after the factory reset in recovery. dont boot after wiping, update after wipe, then reboot.
--> stock recovery -> wipe / factory reset -> reflashed update (ota2.3.3) -> testing now without installing apps
thanks simms!
Edit: the phone got a freeze while I wanted to unlock it -.-
Edit2: I'm testing now in airplane mode. Maybe the error doesn't come...
stiefa00 said:
--> stock recovery -> wipe / factory reset -> reflashed update (ota2.3.3) -> testing now without installing apps
thanks simms!
Edit: the phone got a freeze while I wanted to unlock it -.-
Edit2: I'm testing now in airplane mode. Maybe the error doesn't come...
Click to expand...
Click to collapse
im now thinking it might not software related. if it was software, a wipe and reupdate should have fixed it. maybe you should check into a warranty replacement. .
In airplane mode the error is there, too.
Okay thx 4 ur help. I'm starting a service request. Bad day -.-
Sent from my Nexus S using XDA App
stiefa00 said:
In airplane mode the error is there, too.
Okay thx 4 ur help. I'm starting a service request. Bad day -.-
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
the only other thing i can think of that might cause something like that after wiping is something bad on your "sd" storage. copy everything you need off your "sd" storage and try wiping that.
stiefa00 said:
edit2: in recovery (cwm3.0.0.5) I did: format system, format data, format cache and format sdcard. Then nandroid restore...
Click to expand...
Click to collapse
I think I allready did this? Or do you talk about this 1gb sd. If so, how to format this one?
Could I find something usefull with logcat?
Sent from my Nexus S using XDA App
According to this thread I think you will have to get it replaced:
http://www.google.com/support/forum/p/Google+Mobile/thread?tid=44db6d8e31129d4c&hl=en
Holy sh** what an anoying link. -.-
BUT: thanks dude.. now I know waaazzz up

[Resolved] [q] formatted samsung epic 4g touch need help restoring please

Hello
Today I was upgrading to the latest starburst rom...this was not the first time I upgraded roms and i did the exact same thing I had done in the past which included wiping data wiping cache wiping dalvik and then flashing....
when i did this and restarted my phone it wouldnt load past the boot screen...after the boot animation the phone stayed black...i repeated steps 1-3 again hoping i just did something wrong...but still nothing
i went back to look at the directions and i say that the developer said to format the system under mounts and storage...in bolded font...i thought maybe thats why it wasnt working so i did just what he said...
now when i load my phone it doesnt load at all and when i open cwm i get a string if e: errors basically saying that it cannot find the drive
if anybody has any advice on how to recover from this I would be extremely greatful
Im having the same problem cant figure out how to fix it.

No Cell Service After Trying to Wipe Cache

Everything was going so well. I received my perfect phone a couple days ago...unlocked it, installed cwm 6.0.4.4, and rooted it. Kept it stock and only flashed franco and Drummerjed's volume boost. Life was swell.
I decided I wanted to try the Dalvik optimization mod and in preparation booted into recovery to make a nandroid. I always wipe the cache/dalvik cache before making nandroids because they're made faster when I do this. Never had an issue. This time, however, after clicking to wipe the cache partition the system seemed to freeze, which was weird because on my N4 it clears the cache in a matter of seconds. I held the power button down to reboot the phone and immediately knew something was wrong when I was greeted by 3 warning signs in the notification bar. I then discovered that I have no cell service. I am also unable to access internal storage.
I imagine that I'm going to have to flash the factory image and start over, but I'm wondering if there's any way to avoid that? I'm also wondering why this happened so I can avoid reproducing this in the future. Does cache wiping take considerably longer on the N5, and did I interrupt the process by rebooting the phone?
Thanks so much for your help.
I think you did interupt the process by rebooting the phone. Wiping dalvik/cache does seem to take a lot longer on this phone than on other devices (the only other device I have to compare to is the Nexus 7 though). I would say to just let it sit while it does it's thing next time.
I did have a problem with not having cell service once after wiping dalvik/cache though. I just rebooting into recover and wiped again and my cell service was back. Give that a shot and see what happens.
ramdyc said:
I think you did interupt the process by rebooting the phone. Wiping dalvik/cache does seem to take a lot longer on this phone than on other devices (the only other device I have to compare to is the Nexus 7 though). I would say to just let it sit while it does it's thing next time.
I did have a problem with not having cell service once after wiping dalvik/cache though. I just rebooting into recover and wiped again and my cell service was back. Give that a shot and see what happens.
Click to expand...
Click to collapse
Thanks, ramdyc, wiping again worked. After rebooting, everything was back to normal (seemingly). Cache wipe on my N5 takes waaayyy longer compared to what I'm used to on N4...just gotta be patient with it!
If you are using TWRP, go into the settings and enable rm -rf and it will wipe instantly. (or something like that - forgot teh exact setting name)
If anyone reads this and wiping it again DOESN'T work, you can flash the stock cache.img via fastboot and you'll be good to go.
Synyster06Gates said:
If you are using TWRP, go into the settings and enable rm -rf and it will wipe instantly. (or something like that - forgot teh exact setting name)
If anyone reads this and wiping it again DOESN'T work, you can flash the stock cache.img via fastboot and you'll be good to go.
Click to expand...
Click to collapse
I'm using cwm. I actually just flashed the recently released touch version of it and wiping cache with it took mere seconds like it does on my N4. Thanks for your help, guys!

Nexus 5 not working after 4.4.2 update

So, got the 4.4.2 update , downloaded it and then it asked for a reboot. I did reboot. I am completely stock , no root nothing. Now the update was installing but in the end I got error :/ the image was robot kinda looking like he had heart attack... anyways, it gave me 4 options, so i cliked volume button .. I don't know all the options but from the 2 of them, one was reboot and other was clear cache or something. I thought clearing cache may **** up something on phone so I tried scrolling back on the top.. but to my surprise from volume buttons phone didn't let me go up at all :/
I didn't had any choice but to choose clear cache.. I thought it may help. But it didn't... so I forced reboot it with power button hold for 10 seconds.. Now phone is working but no sim on it starts.. no signal whatsoever. If I try to open my gallery, it doesn't open. says "No storage, no external storage available" .. when I try to connect usb to phone and try to backup my pics and stuff from pc it doesn't open anything. PC does show "Internal memory" but there's nothing in it. My phone doesn't let me even use wifi. So I thought it was time to factory reset, but to my surprise when I click erase everything, it does nothing. So, I thought of rebooting and clicking "power+volume down" , still nothing.. it shows the same robot pic having heart attack... I doesn't have knowledge of root and stuff for now, I am a simple user of nexus 5 who is still on stock. Any help please? I am worried here now
Think you're gonna need to follow one of the guides to flash stock system again
Sent from my Nexus 5 using Tapatalk
nevermind. Working again.
What did you do to get it Woking I got mine in a box ready to RMA if you got a suggestions I'm open to try one more time beforrv I be without my phone for s long time
Sent from my Inspire 4G using Xparent Green Tapatalk 2
How did you get it working?? F**k mine has no signal at all too! Damn I am really pissed!
---------- Post added at 04:09 AM ---------- Previous post was at 03:59 AM ----------
I did a factory reset and its working now. What a headache Google!
Mistake 1: not allowing the phone adequate time to clear the cache when finished installing the ota. If you force the phone to restart during this process, it will corrupt your cache which causes all of those issues listed above (loss of signal, no baseband info, loss of access to mountable storage, etc).
Cache clearing takes considerably longer than on any other device I've owned prior to this phone, so messing with the phone during that important cache clearing process is the issue.
Mistake 2: reflashing the entire phone to stock. In the event you become impatient and decide to force your device to restart, you DONT HAVE TO revert to stock to get the phone working. What you have to do is restore functionality to the cache portion of the phone. All of your files are in fact still on the phone and accessible, you just have to unbreak your phone. You do this by procuring cache.IMG from the stock image of the phone (available on googles websites), and then you fastboot flash the file in the boot loader (look up adb commands to do this). Once this is done, reboot the phone and everything should be hunky dory after your applications cache is rebuilt and android boots.
Note: you might need to check for root again. Also if you corrupted your cache you will have to set all of your ringtones and notifications again because this cache corruption process unlinked the ability of yours apps that use notifications to "see" the sound files you have on your SD card.
Sent from my Nexus 5 using xda app-developers app
delete
What a savior ... wiped the cache again , gave adequate time this time and it booted again fine
I had the exact same problem! Cleared cache in recovery mode in 4.4.4 and then thought it stalled because it was running for 1 minute (which normally took 2 seconds in previous devices) so I forced a restart. Then I had all sorts of errors: couldn't connect with my SIM card, couldn't download our see my pictures, screen rotation but working, constant Google Playstore crash popups, and more.. I thought I'd bricked it. A few more attempts to clear cache in recovery mode, still took longer than 1 minute (also the same errors in my recovery mode like stated above: "E: failed to mount /cache" ... that sort of things)
A few days later I'd had it. My steps for the SOLUTION:
1. Cleared cache in my settings: settings -> storage -> cache (don't know if this has influenced the outcome but I did it).
2. Went back to recovery mode, errors still displaying, but tried again to clear cache. The only difference now was that I left it running without touching my Nexus 5 for about 10 MINUTES(!).
..........To my surprise it ended with "clearing cash complete" WOW! So I rebooted and everything worked fine again! The only thing was that I had to set some notification sound again. That wasn't too hard
Let me know if it helped in your case
xybur said:
Mistake 1: not allowing the phone adequate time to clear the cache when finished installing the ota. If you force the phone to restart during this process, it will corrupt your cache which causes all of those issues listed above (loss of signal, no baseband info, loss of access to mountable storage, etc).
Cache clearing takes considerably longer than on any other device I've owned prior to this phone, so messing with the phone during that important cache clearing process is the issue.
Mistake 2: reflashing the entire phone to stock. In the event you become impatient and decide to force your device to restart, you DONT HAVE TO revert to stock to get the phone working. What you have to do is restore functionality to the cache portion of the phone. All of your files are in fact still on the phone and accessible, you just have to unbreak your phone. You do this by procuring cache.IMG from the stock image of the phone (available on googles websites), and then you fastboot flash the file in the boot loader (look up adb commands to do this). Once this is done, reboot the phone and everything should be hunky dory after your applications cache is rebuilt and android boots.
Note: you might need to check for root again. Also if you corrupted your cache you will have to set all of your ringtones and notifications again because this cache corruption process unlinked the ability of yours apps that use notifications to "see" the sound files you have on your SD card.
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I did that. The fastboot flash cache.img and still have the error...
Try flashing a stock rom, including the userdata.img file. Flash the userdata file last, right after flashing, boot into recovery and perform a factory reset.
. You do this by procuring cache.IMG from the stock image of the phone (available on googles websites),
where to get the cache.img from.
i have searched the folder of the stock rom after extraction,couldn't find one.
and my phone is soft bricked.
also its a asus zenfone 5(501 cg) with 4.4.2 not a nexus but with similar problem(rebooted phone without waiting for cache wipe to finish )
please reply asap
thanks

SD card fried?

Hi all, new here. I would appreciate any responses/ideas.
I have an Samsung Galaxy Rush. Here's what happened:
After playing Netflix for a while the sdcard would get full, so I would go into root and delete the cache(as instructed by someone else). One night I fell asleep, woke up the next morning, and decided to just wipe the entire sdcard. Booting into recovery I did just that. Plugged to compuer, ran Odin, pushed the stock tar.. all went well, but then the phone would not boot up. It will only go into recovery.
So I tried this again, except I wiped everything. Cache, dalvik cache, everything(i'm noob, pls don't hate ). Same result.
I should mention that in recovery, I can mount cache, mount this, mount that, but mounting the sdcard won't happen. It just blinks the screen.
I'm thinking either the sdcard is fried. Or it's one of these things I'm not familiar with (boot loop? soft brick?)
Thanks for taking the time to read.

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