Dev-Team released PwnageTool and Redsn0w to jailbreak iOS 4.2.1 and update iPhone 3GS/3G baseband to 06.15.00 which is unlockable with UltraSn0w 1.2. However, many users are reporting poor battery performance after the jailbreak/unlock.
According to Sherrif Hashim:
On a very important side note, before anyone starts to complain about battery drainage issues after installing the new ultrasn0w on the 6.15.00 updated BB, the culprit here is not ultrasn0w, it’s the hacktivation process (activating the phone by pwnagetool or redsn0w rather than using an official carrier sim to do so) that u mostly did while jailbreaking.
The 4.1 and 4.2.1 ipsws unlike their old ancestors, seem to keep looking for valid push certificates all the time, either thru your wifi, or thru your cellular data network (which u only have after installing ultrasn0w and hence u accuse it) , this can be seen clearly if u have a cellular working data plan for 3g or edge and u watched the settings > general > usage > cellular network data (sent & received are continuously increasing even without using any internet traffics on the phone) , this will also render the phone going hot even in stand by mode and also very rapid battery drainage occurs plus consuming ur data if you were not on an unlimited plan.
How to Fix Battery Drain After iPhone 3GS/3G Baseband 06.15.00 Unlock
While an official fix for battery drain issue is currently being worked on OUT Now (See C below), you can try the solutions listed below to fix the battery drain problem.
A) try to activate the phone using the official sim if u have it (even if the sim itself is old and not working) , or borrow it from a friend if it’s possible, by any means, try to have an access to one and use it.
B) if A is not feasible, u can install SBsettings from featured cydia packages and turn wifi and data off when u r not using it (shuts down both 3g and edge) , till C is done
C) there is a very nice module being worked on by a trusted jailbreak app dev, namely @sbingner, which will resolve that issue for those having it, the details of which shouldn’t be disclosed until he finishes his awesome work, till then, either use A or B to resolve the issue if it exists for you. Solution is out now:
How to Activate iPhone Official with SAM
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nice, the best is always activate the phone with the original carrier sim cards, i thought hactivation was only on the begining of the jailbreak proccess.
thank you for the info!
Excellent news. In fact I’m not in 6.15.00 but installed the ultrasn0w update and this battery issue occurred since the upgrade. My question is only one…must I use the original SIM (option A since I have it) every time I reboot my 3GS ?
i think u need it for 1st time.
try to downgrade to 4.1 and jailbreak with limera1n it work to me (unlock with ultrasn0w)
thank you. Yes its working for me too
But my GPS is not working.
Can you help me
its a problem with 4.1 also….
How do i activate my phone. My friend has an iphone on att. can i activate it under his account and phone number to get it activated? Then take the newly activated sim and put it in his phone? Will this activate my phone but de-activte his?
try pushfix.info. i fix my 3GS 4.1 battery drain problem (data/push usage)
Any idea on the timeframe for the fix?? I know that app dev can be unpredictable at times, but just trying to get an idea. Is it a complicated fix, or will it be months.
What about GPS problem?
Sure, is a apple trap for dev-Team, that’s why they have leave the ipad firmware 3.2.2 with baseband 06.15.00.
To teach a lesson to all users who rely on the dev-team.
I’ll be honest, I think that I agree with you.
I mean come on, maybe this was the solution the whole time because they cannot find a crash in the 05.14.02 BB (correct that if the BB was wrong). it seems like apple would do this. “They want an unlock? Fine, we’ll let them have it, see how they like no more warranty.”
Overall though, iPhones are well put together products so there shouldn’t be problems. My 3GS for example, pristine condition and not a single problem and it’s 8 months old. But for the guys who have defective units and updated their BB to 06.15.00, I wish you luck 😉
Guyz your iPHONE 3G/3Gs Stuck on Recovery Mode after Upgrading to iOS4.1/4.2 Baseband 6.1.5??
it’s okey, Text me I have the solution.
also I have the solution for GPS 😉 peace out
catch yea there
Hello i m stuck, my iphone has stuck at the recovery mode..it does not do anything and just show the apple logo on the screen i tried using redsn0w to jailbreak and unlock but its not movng ahead can anybody help me to get the iphone back to action….. i had earlier unlocked it succeccfully with the base band 6.15 n was working fine but suddenly i got the problem for the earpieace so tired reseting it again n now i m stuck at the recovery mode its not processing further.pls help me…
Hey guys I’m on 3gs new bootroom 4.2.1 on simple mobile service which is mvno tmobile.
This fix worked for me hopefully it will for you. I went ahead and completed the bingner update choose at&t as my carrier keep in mind I did not activate using a at&t sim everything activated fine for me in sam.
The real problem is your email exchange accounts or social networking/music apps that run the background. With that said go to your mail exchange account or accounts and turn them OFF all of them I’m not talking about push notifications turn the mail account OFF.
Now delete all music and social networking apps that run in the background yahoo facebook pandora etc. Now open your mail app to make sure there is no connections. Do a hard reboot after the reboot turn your mail accounts back on and reinstall your apps.
The problem is during the update the mail client or apps don’t fully restore and they keep trying to connect to a bad certificate.
Hope this fix works for you!
Thanks good post!!
How do you turn off mail accounts?
how do i activate the phone with an official at&t sim card, can anyone please tell me the steps?
Hello. Did you ever get a answer for this?
I’m using a jb and unlocked 3GS, old bootrom, 4.26.8 BB and 3.1.2 FW.
I want to upgrade to 4.2.1 but I am confused with this unlocking situation.
If I use custom FW, activate my phone with official SIM, unlock with ultrasnow 1.2, I will face the same problems with battery drain etc?
i have been trying to fix my data usage and battery drain problem for thhe last few days , but no matter what tut i followed its never worked(Redsnow b6 deactivate), still kept using data, so i restored to 4.1 bb 6.15 removed sim, jailbroke with limera1n, installed SAM & Sam prefs,Restarted, Selected carrier where my cell phone is lock to
( in SAM), activated with itunes, installed ultrasnow, then inserted sim, NO data being used at all and battery drainage prob;em gone…..ever other tut i tried never worked (data was still being used) hopefully this helps anyone with the same problem i had
Thanks for sharing, sounds like my last chance. How do I go about restoring back to 4.1 from 4.2.1 though?
Open tinyumberla click save shsh once done click start TSS server open iTunes shift click restore then select iOS 4.1 click restore you will get error 1015 which is just a baseband error go back to tinyumberla on the left there will be a list of divices click iPhone then click on kick divide out of recovery if you have questions email [email protected]
But of course you must have shsh saved for 4.1
The fix is now out if you don’t have the physical SIM to put in the phone. Step by step instructions here: http://ideavein.com/2010/12/28/fix-battery-drain-gps-iphone/
has anyone been able to fix the battery problem i’ve tried everything and nothing seems to work 3G bb 06.15.00 4.1
nope. only thing that’s worked is to turn off notifications.
i was really frustrated with my iPhone.!
Hey, i have an iPhone 3G BB 06.15 version 4.1, from at&t but i use it with TELCEL in MEXICO. it has battery drainage,, my phone its jailbroken obviously, i’ve unlocked it with ultrasn0w 1.2 ,
i see i can activate it with an AT&T simcard ( I ACTUALLY HAVE ONE! ) but i dont know how to do it? is there a tutorial, explaining how to activate it?
also, is there a risk? will i lose the unlock? will i can keep using the iphone here in mexico?
You really helped me!
Bcoz of this problem i was thinking to dumb my 3gs but now its working awesome 🙂