[Galaxy S6 Q&A, Help & Troubleshooting] tnimk:
Hi All, my wifes s6 (using xtrestolite rom) has stopped taking a charge. Im trying to figure out what the issue is. Unfortunately im travelling for the next month so have limited trouble shooting options.

Background

- wife has been complaining that her phone battery dies quickly. I kind of dimissed her assuming it was in her head. :) she said it loses 10percent in standby mode in 1hr roughly. Shes been complaining about this for a week.

- yesterday at the airport her battery was at 12% and when we plugged it in to charge it wouldnt take a charge. Bolt icon did not come up and still said "connect charger" on the screen. Normally when connected the red Led comes on, but now it doesnt.

-our normal chsrging method is using and aukey 3port charger as fast charging mode.

Troubleshooting/diagnosis

- i have an s6 as well so i tested all the cables and chargers on my phone and it works. We even had the official samsung charger and cable but same issue.

- after the phone was completely dead, if you plug in the charging cable the charging bolt icon comes on for a few sec, the top left says "kernel is on seandroid enforcing" for a sec and then everything goes blank. Red charging led doesnt come on. So it seems like it detects the cable but wont charge enough to boot up.

- i was able to boot into twrp recovery but where its supposed to have a battery level its completely blank. Originally i was able to do this without any canles but then it wouldnt. My guess is that i orginally had a bit of juice and then it was completely dead.

-after leaving it plugged in for a sec, im able to turn it on where it boots and i can see it says 0% battery. It stays on for 5sec before turning off itself.

- i also tried plugging it into laptop, but laptop does not detect it. The phone does detect the power though and does the same as above but this time bolt charging icon stayes on for 1-2min before going off and seeing the "kernel is on seandroid icon". Once the seanadroid goes away nothing seems to happen. After doing this i was able to turn it on and it showed 1%. I thought this was promising but after trying this a few times ive never been able to get to 1percent again.

- with the brief charge thst i guess its getting, i was able to go i to twrp recovery and do a factory reset. This was with cable plugged in the whole time. Without cable in i dont think it would complete the action.

That about summarizes whats happened.

Ive concluded the following:

- charger and cables are ok and not the issue

- it is not the charging port since the phone does seem to be getting some juice bacause charging icon comes on for 2sec whenever cable is plugged in.

- its not a software/app issue since it wont charge even in recovery mode. Also factory reset was done and no luck.

My best guess is that the battery can only hold a 0-1% charge which is enough to register it being plugged in but not enough to do anything else. But if everything else is ok shouldnt it work when if the cable is just left in. This makes me think theres something else going on.

Any suggestions or theories would be much appreciated :) trying to decide if i should pay to get battery replaced.

Sorry for the long post. Figured it is best to give all info.

Thanks in advance!

Update June 3:

Hey everyone, just a correction on the above. It looks like it is able to charge in recovery (slowly). I realized that although there is no battery level during recovery, no charging led, and not booting up after being charged for a bit, maybe its just going slowly.

So i went into recovery and left it overnight on the non-fast charging and woke up after 8hrs and it was at 78percent!!!

Im not sure why it didnt go to 100% in 8hrs.

The phone still doesnt charge regularly when plugged in, so still need to fix that.

Do you guys think its a rom issue (only factory reset done before) ? I will see if i can get a rom for flashing.

Update 2:

Reflashed xtrestolite rom but still no luck. It wont charge.