yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] asb2164:
While on the official JB when I plug it in the computer sees the phone and I can mount the storage on it but it wont charge through the computer either.

I have tried several different chargers while on JB and all with the same result the only way to get it to charge is downgrade to 4.0.4.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
I would investigate/rule out cable first b4 returning phone, very important that's its for skyrocket or newer Samsung phones, find someone that has an oem Samsung cable
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
I am having the exact same problem. I just got mine off ebay last week and it also had ICS on it and charged with no problem (several times). Since I'm new to the Skyrocket I did my research on here (great threads by Vincom by the way) to make sure I do the correct steps for any type flashing and upgrading. Steps are similar to my old X10, just different sofware. Used ODIN, flashed stock, uploaded all aps, root, recovery, etc. Charged it that night with no issues. Next day went to charge it again when the battery read "!" and after 8 seconds received "battery disconnected". Unplugged, tried again, same thing. This went on for an hour until finally it recognized. Next day, same problem. Tried reflashing stock, did it twice in a row, and the sequence started again after the initial charge. Tried different roms instead of only stock, same issue. Been looking at all threads about this and after trying each possible scenario, same issue. Is there a bug in the USB Debugging? For the experienced DEVs is there a flashable fix that can be made? If there is one and I missed it in my research can someone point me in the right direction? Or am I stuck with an external charger from here on? Thank you in advance for any help on this.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] asb2164:
Well I am glad to know that I am not crazy now.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
You're not alone. I'm ready to go all "Office Space" on it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
no one responded if they are using oem charger and cable or replaced/tried a different charger/cable that is still oem.

if it works on stock ics it should work on stock jb, the only thing I could think of it not working on jb is the charger/cable are not compatible with the phone and that the jb firmware has changes to it compared to ics that wont allow it to charge properly
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Thanks for the reply. When I got mine off eBay it said it came with a Samsung charger but not the original. So I found one that said OEM new for the Skyrocket. That's the one I've been using. Since I'm planning on building a rom from stock for my own use do you think there is a file from ICS that can be ported to JB to make it compatible with non OEM chargers? That is in case I got hosed on my supposed OEM that I bought.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
I use both oem and aftermarket and they all work. Try a couple different charger cables and charging blocks.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Great minds think alike. Tried that too. The only consistant result is that it's not consistant. There's got to be something in the build that some devices just don't recognize coming to JB. I'm just not experienced enough to know where to look for this error to try and fix it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
when using jb is it a upgrade to ics with no wiping, if so try a complete wipe then flash jb with odin

Posted w/xda app w/ i727R

MY STICKIES

| ROMS | KERNELS | FIRMWARE | RADIOS | HOWTO'S | GUIDES | INFo |

NEWB GUIDES TO: RESTORE TO STOCK | USE ODIN | INSTALL CWM | ROOT |
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
I don't believe I did a wipe when upgrading from ICS to JB with ODIN. I assumed it did that on it's own and wouldn't need to. Ok, that gives me a place to start again. Maybe this can work for each of us with this problem. I'll wipe the sucker clean and downgrade to ICS with ODIN tonight. Test with my plethera of chargers I have at home see if they all work. Wipe it again and upgrade back to JB and test. Report back with results by tomorrow. Thanks for the idea Vincom.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Well crap. I was hoping I had good news for this topic but unfortunately I don't.

So I wiped everything yesterday when I got home. I was using CWM as my recovery instead of TWRP to wipe and format everything. I've used both recoveries before, just so happened to be on CWM at this time. Went down to ICS using ODIN and everything worked fine. Tried every USB charger I own and each worked flawlessly. So I wiped again, upgraded to JB and tested. Again, everything worked fine even every charger. After some playing with it I decided to go ahead and put TWRP back on through ODIN and immediately after the reboot the dreaded "Battery Disconnected" popped up. :mad: So back to the full wipe, re-flashed JB through ODIN and all was peaceful again.

So after the fresh install I downloaded all my apps back to it, frequently plugging and unplugging just to see what happens with no errors. Ran the battery down and charged completely over night. Got to work this morning, plugged it in just for $#!+$ and giggles, and sure enough "Battery Disconnected"!

Now I'm to the point of laughter about this. Thought maybe it's when I flash the custom recovery that is doing this. *loudannoyingbuzzersound* wrong!

So of course can't test again until I get home but I have a question for you Vincom and everyone else. Is there a way to flash a custom recovery without using ODIN first? Is there a way to root without the custom recovery installed? What version of ODIN is everyone using? Since I have also a computer running Ubuntu, does anyone have experience with Heimdall? If so, can anyone send me a link with a friendly tutorial on how to use it? I have it downloaded but haven't been able to get it to work and all the links I find are either not friendly or are showing how to use on windows and not Ubuntu. That's why I've been using ODIN on my wife's computer instead that runs Windows.

Sorry asb2164, I'm trying buddy.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
to flash recoveries on stock phone only odin or hemidall, but i have no experience with hemidall.

root is only possible with custom recovery.

odin/twrp versions are in my stickies.

when restoring to stock dont reload apps and test as is for awhile to rule out a misbehaving app

Posted w/xda app w/ i727R

MY STICKIES

| ROMS | KERNELS | FIRMWARE | RADIOS | HOWTO'S | GUIDES | INFo |

NEWB GUIDES TO: RESTORE TO STOCK | USE ODIN | INSTALL CWM | ROOT |
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Will do. Keep y'all posted. Thanks for the help buddy.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Well, ok, strange turn of events. Just plugged it back in because the battery is low and for the last 5 minutes it's been charging without issues. Maybe this morning's issue was a fluke. asb2164, maybe what I tried did actually work. I'll let it settle for another day before trying to add a custom recovery. Our particular devices may need to settle before adding anything custom to them after flashing stock. Vincom, thank you again for the suggestions. I'll report back with future updates. Oh, and again, if anyone that reads this thread has experience with Heimdall, please let me know. Either here or PM me. Thanks again.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Might help on heimdal. http://xdaforums.com/showthread.php?p=43852869
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] asb2164:
I would try some experimenting myself but I really need my phone to function correctly right now for a few things I have going on.

But I will keep an eye out on this I hope someone figures out what is going on.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Hmmm... Seems I am having this same issue. I purchased a Skyrocket that was supposedly "new" on eBay, first one wouldn't recognize a SIM card, OK, no problem, its just a bad one, sent it back and got another one, seemed to work OK... Plugged it into my PC (which already had Kies on it) and it told me to upgrade, so I did, now getting the same "Battery Disconnected" issue. Tried two chargers (the "Samsung" one that came with the phone, and the one from my Samsung Stratosphere), factory reset, wipe cache, reflash JB and Initialize in Kies... Nothing seems to work. Completely stock... On ICS all is fine, on JB gives "Battery Disconnect" warning and won't charge, upgraded with Kies twice and downgraded with ODIN to confirm.

Did anyone find a resolution to this? I sent an email to the people I got it from looking for a refund, but I really need a phone... the HTC Aria I am using is rather unstable, rebooting a few times per day.

EDIT: Did some more thinking about this, is the battery charging portion tied to Recovery or Kernel? The reason I ask is it does the same thing even when powered off, if you connect the charger under the JB "firmware" you get a battery icon with an exclamation and no charge, if you connect if ICS firmware it works fine, is this not related to the recovery installed (even when powered up) and could this be fixed by installing TWRP or CWM, or is this tied more to the kernel?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Here you go everyone. Made the steps in a new thread that worked for me. Good luck and happy flashing.

http://xdaforums.com/showthread.php?p=44809208#post44809208
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
This is not "used like new" this is used garbage...

Don't buy stuffs from random people..
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vinitshah1252:
CM 10.1.2 network problem

I have install the stable CM 10.1.2 but whenever I dial call or receive call I lost my network signal. This happens only for 10.1.1 and 10.1.2. Everything else is working fine. please help me.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
What baseband are you on? Should be ucmc1.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vinitshah1252:
How do i find that?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vinitshah1252:
it is UCLI3
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
really, u need todo more reading b4 flashing stuff, ur a brick waiting to happen

Posted w/xda app w/ i727R

MY STICKIES

| ROMS | KERNELS | FIRMWARE | RADIOS | HOWTO'S | GUIDES | INFo |

NEWB GUIDES TO: RESTORE TO STOCK | USE ODIN | INSTALL CWM | ROOT |
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ZigZaGz:
Battery Disconnect

I too experienced this problem with a phone my wife purchased for her mom. Item on eBay sold as NEW and came with UCLF6 out of the box and it charged fine with any charger. Used Keis to upgrade firmware and BOOM after reboot Battery Disconnect with Unknown battery error. Tried different battery chargers etc. Not sure if the controller for the charge input is different, maybe a knockoff, going to try the return to UCLF6 trick i will post my results. Also used Official Samsung cables chargers etc.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Quick fix is ODIN back to ICS...

This is not a hardware issue, and is not unheard of before, lots of people have had this issue going from ICS to JB, there is a thread about it here with possible solutions. It is a ROM issue, the general consensus is something is not flashing right with the drivers that talk to the battery. Sometimes multiple wipes and flashings get it to work, sometimes it just needs to drain the battery and charge, others never get it to work. Go back about 8-10 posts and there is a link to the possible solutions thread posted by dgoby
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ZigZaGz:
Kernel Issue?

After a little more flashing and a lot more research...if not everyone is experiencing this issue on Stock UCMC1 then maybe there is a slight hardware difference depending on production dates and/or issue on kernel level. I find it odd even with phone off it will give the charge/disconnect error which would be entirely kernel related if I am not mistaking, which could be. The power module that controls charge rates which I would imagine to be a software driven mosfet which either maybe Samsung changed during production. Being the the Kernel Layer connects the OS to driver level one might think that would be where the problem arises. I wonder even if the Samsung Commits/Open Source for kernel would have the same issue being I tried several of the TW 4.1.2 kernels, not sure but did recall any of the having the fast charge options. Being the Galaxy Note I717 has essentially the same hardware except the screen/S-Pen yet I can't recall any trouble with the 4.1.2 update on it.......

UPDATE: After lots more testing it seems my particular issue was a bad phone/IC(integrated controller). After trying different batteries, roms, etc. Even on stock ICS it would occasionally battery disconnect when charging but was tolerable until I put in the microSD then it did all the time. Guess Sammy went cheap or the assembler later in the production. Anyhow returned phone was my only fix. Best of luck for those stuck under the eightball.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
I smell some "fake" device here ... "Real" Samsung phones would never refuse or have issues with an official update giving the tens of thousands of people who already updated their phones with it and never have that particular battery disconnects !
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Seriously? Why would a "fake" device be locked to AT&T? And why duplicate a 2 year old phone with a specific LTE radio?

Anyway, your pretense is false, because if you Google "Samsung Battery Disconnect" error, you will see it is actually a common Samsung problem and not limited to the Skyrocket... the Galaxy Note, Note II, Galaxy 1, 2, & 3, Exhibit, Omnia, and a ton of other Samsung devices have this issue from time to time, sometimes at ROM flash, sometimes in use, so it could be any number of issues or a specific combination of things that are just right. I doubt all those devices were fake as well.

Now, a fake battery, that one I can swallow pretty easily... that is actually quite common.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Can a couple people post a picture of the front and read of their stock batteries? I am actually thinking the one I have might be a fake or at least incorrect for this device, it looks different than the picture of the replacement on Samsung's website... Should the battery say "Near Field Communication" on it like this one?

Mine does not the NFC text, this could mean there is an issue when going to official JellyBean if it doesn't have the correct circuitry in it.

Here is my battery, I was told it was "OEM"...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
heres my original Samsung battery that came w/the phone

it doesn't look like yours,for one thing mine is made in china not korea , so it could cause an issue w/aftermarket or fake Samsung batteries not charging/working correctly on jb
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Awesome, thanks... Confirms my suspicion that my battery is fake, or at least incorrect for this phone. I just got a 50 percent off accessories coupon from Samsung, I will probably order the correct battery directly from them to test with. The guy I bought the phone from online is giving me the stupid act like he doesn't know what I'm talking about. :(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Hate to be the barer of bad news but I've got the same as Vincom and initially had the same issues.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Hmm... Well, I guess it was a reasonable idea anyway. Back to plan B I guess... Whatever that is. Will probably try manually flashing radios and Beanstalk ROM this weekend sometime.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
It's still good to have original parts, especially batteries. But have you tried the steps that worked for me yet?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Not yet... Still looking for the short cut but need a time that if things go wrong, I have time to correct it before the next crisis of life hits. :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dgoby:
Understandable. Mine is still running perfect since I did it. If you find the short cut then definitely post it, if not, still the alternative.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Changing radios to UCMC1 and installing TWRP recovery and rooting had no effect. So this clearly seems to be kernel related with the JellyBean code of the kernel and how it is talking to the hardware, the stock kernel and Marla kernel have the same result... I tried Beanstalk 1.300.3 (Wrap-up 3) and the battery would not charge, in the *#*# menu under battery it showed the exact same thing, "Unknown error" and would not charge. Restore back to ICS from TWRP and everything was OK again. Think I will wait to see how it goes after I get an real Samsung battery.

Going to move this to the Battery Disconnect thread going forward...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Well, the seller who sold me this phone, phonesandparts.com on eBay has agreed to take back the device and give me a full refund. Guess I will just do that and now that the Nexus 4 has dropped a $100 on price I can get a Nexus 4. I am tired of messing around with this, I love the device but not being able to flash anything is annoying as all get out, it might be fake, defective, or whatever, but guess I am moving on, just waiting for the RMA then I will have to move back to my old HTC Aria for a while and just deal with it for now and once my refund comes through grab a Nexus.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pinofly:
Could it be the battery?

I bought my phone in hong kong anth it came with the suspected fake battery without the NFC notice. I've tryed all the steps in your post and they don't work for me, I flashed 4 times the JB sbf and the problem was still there. I suspect it is the battery.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] asb2164:
I found an original OEM battery on Amazon I charged it up in the phone used Kies to upgrade to JB 4.1.2 and it is charging fine.

I had 2 of the suspected fake batteries and both would not charge but it is working now with the new battery I got today.

Here is the battery I bought on Amazon http://www.amazon.com/gp/product/B007PSBELE/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

Flashed CM 10.2 still charging fine
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Good to know but too late for me... Returned phone and moved on to a Nexus 4. Now if I could just get Net10 to speed up the port of my number from Google Voice. :(

Sent from HTC Aria (CM 7.2) via XDA Developers app
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Andy_Thatcher:
Same issues here for months. To write off a couple of things mine was bought from an AT&T store and l have the original battery and charger that I use for charging. Been an ongoing pain along with the screen blacking out on calls. Seems I can have it charge or the screen not black out but not both. Become a quest to get this sorted lol.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
AFAIK the jellybean roms are somewhat troublesome. I've had issues with pulling out the battery with the phone on which would result in stuck at samsung logo on boot. The other thing was CWM backups restored either without dialer or with it crashing. Basically what helped me was reading a lot on this site and the good people here. Also updating through Kies worked after I flashed back to stock ICS in odin.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Jelly bean is fine. It's user error or hardware that's the problem.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
I'd like to believe that and I used to think so too but now I don't.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
I've had no problems. Runs fine on my skyrocket, my Samsung tab2 and my HTC one. What's the problem?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
im testing cm10.2 now, pulled battery and it restarted fine

either you had a bad flash, an early build of cm10.2, or more likely using wrong recovery, im using twrp 2.6.0.0
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
Oh, you see I am talking about stock JB roms UCMC1 and RUXUMA7. Not CM. CM has always been a breeze.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
oh my bad, when I was testing them back in the feb didn't really notice anything bad except for the size of the roms, could still be a recovery issue as twrp doesn't handle the preload properly, twrp 2.6.0.0 does seem to handle preload ok but not the newer versions above 2.6.0.0.

when I made the rogers full stock firmware back in the feb 2013 I was using twrp 2.4.1.0 but did not test the preload partition, it writes the preload properly but don't think it could either format/backup preload hence no proper restore of backup, I wrote about this in the twrp thread
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
Back in february I was on the then latest CWM. And that's the first time I had the stuck-at-samsung-logo problem after removing battery with the phone turned on. That time Odin saved me. Then it happened again recently and that's when you told me that I should use Odin, which I totally forgot about. The thing where the dialer would disappear or fc on boot happened anytime I restored a CWM backup of RUXUMA7. There are some other oddities about those roms (at least if you're rooted), but I can't remember them.

I just know that each time I thought I'd have my phone "the way it's supposed to be" with stock jb roms I ultimately had too many issues too stay on them and switched to CM or MIUI.

The missing dialer backup could've probably been CWM. As for the battery brick, well I have no idea what could have cause that.

And more importantly, when I ran UCMC1 / RUXUMA7 vanilla with no mods or root I didn't have any problems.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Why would you pull the battery with the phone on? Lmao
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] acejavelin:
Lol... probably an old troubleshooting trick from long before smartphones. It was called a "battery pull reset"... On old dumb phones it would fix weird issues sometimes, tech support used to recommend it before the days of ram disks and caching.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
That's it exactly. But you realise he was just giving me a hard time and knows the answer to his question. :rolleyes:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Andy_Thatcher:
Sorry have to ask as I have been back to stock and back via Odin a few times then back up through Kies and just AT&T but bottom line still getting battery not charging message after 10 seconds or so now even reverting to Gingerbread. Has anyone the links that will put me back to stock please ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Read the stickies. They are there
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Andy_Thatcher:
And I have tried everyone.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Sammobile.com
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Andy_Thatcher:
Thank you !
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Push the thanks button dude
[T-Mobile Samsung Galaxy S II SGH-T989] jazzycolours:
Hello Guys. How u doing? So I'm planning to buy a friends T-Mobile Galaxy S2 that has a old battery there. I want to know if the Battery from this version of S2, is the same as the normal version of the galaxy S2? Or is it similar to other Galaxy's? Or is it Unique? Thanks in Advance

:fingers-crossed:
[T-Mobile Samsung Galaxy S II SGH-T989] jason4962:
I heard nexus batteries fit. Not sure if international and others fit. because tmobile s2 is 4.5 screen size. while international is 4.3 i think. I not positive