• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Root Use of non OEM batteries

C

ciper

Android Enthusiast
I've been trying to research the mechanism that prevents aftermarket batteries from charging in the phone. My strong feeling was there must be a whitelist and the batteries all have a serial number within a certain range.

While searching around I found that the issue existed, and had been solved, on some of the Verizon Samsung phones. An XDA Developer named SirGatez released the code to bypass this check and it has since been implemented in many kernels.

Here are some random example of one of those kernels
[KERNEL] The FrankenKernel - Voodoo Lagfix, Sound, more fixes + OC for DJ05/DL09 - xda-developers
[KERNEL][04-26-11][TW][AOSP] PeanutButta Jelly Time [Archive] - xda-developers
[KERNEL] PeanutButta Jelly Time - Android Forums

I will try to find the specific changes made to the kernel and post them here. It is my strong feeling that they've disabled the check in the kernel but it could also be done in a less obtrusive way.
 
Cipers mission is to find out why the phone won't charge the EXTENDED batteries. When you put an extended battery in the phone and try to charge it (in the phone), a message saying something like "This battery not supported" shows up on the Indulges screen.
We're trying to figure out why.
Doing Samsungs job.
 
ickster said:
Cipers mission is to find out why the phone won't charge the EXTENDED batteries. When you put an extended battery in the phone and try to charge it (in the phone), a message saying some something like "This battery not supported" shows up on the Indulges screen.
We're trying to figure out why.
Doing Samsungs job.
Click to expand...


Ok... well then the serial number theory is shot...

My non OEM but same capacity eBay batteries work normally...
 
I saw a rumor (don't ask me where, I have no idea). that Samsung may finally be coming out with an extended battery.......he said hopefully.
 
Vance Fox said:
Ok... well then the serial number theory is shot...

My non OEM but same capacity eBay batteries work normally...
Click to expand...

Not necessarily, maybe it recognises that the battery is larger through the ser. number?
This is all way new to me, so take what I say w/ a grain of salt here. Just contributing to the discourse. Props to ciper for his research on this.
 
I have been reading datasheets for the IC used in batteries. The old batteries used that middle pin with a heat sensor while newer ones have a "smart" chip to provide many services.

My feeling is that its similar to how many laptops wont accept OEM Intel wireless cards. In a past life I would edit peoples bios to allow a Dell branded Intel card to work in an HP laptop (for example). This smells similar to that but its just a guess.

I've sent the developer of the mod a PM on XDA forums.
 
1250mah is less than the original battery.

I looked through Sirgatez github but did not find the code :(
 
Yes, it is a little smaller, but not noticeable. But when you have one in the phone and 3 in your pocket for a total of $26.00 (and an external charger to boot), I think it's a good deal. :-)

I usually get through the day on 2 batteries.
 
eBay has the same 3 non-OEM batteries and charger for around $4 shipped... and those are 1500s... Sorry, but you got rolled.
 
I think it's a fair price.

I'm not a big eBay fan, for various reasons. I've had a nice fraud-free experience with cellphoneshop for a few years.
 
dsrtegl said:
I think it's a fair price.

I'm not a big eBay fan, for various reasons. I've had a nice fraud-free experience with cellphoneshop for a few years.
Click to expand...


And that's why I reorder from the same ebay seller got each phone our laptop or anything really.
 
You must log in or register to reply here.
Back
Top Bottom