Well, I too faced the same problem.
Do you have an update to share?
I bought my S2 in June, 2011.
Day before yesterday it was connected to my PC via USB and suddenly it just stuck on boot screen.
No Recovery mode but, yes I could access Download mode. (I still can access Download mode)
I tried flashing the stock firmware but it would not pass NAND WRITE START..tried flashing siyah kernel...would not pass NAND WRITE START.
Showed it at a local service centre..They say I need a motherboard replacement (standard answer)...Cost: Rs. 8,852/-
My phone was pretty good till date & if I don't get it serviced it would just be an "EXPENSIVE PAPERWEIGHT".
I just want to ask if a JTAG can solve the problem? Or like you suggested in your post.. by changing the power IC ?
If not, is it viable to spend so much on a 2.7 year old phone?
Originally Posted by shuvabrata
My S2 just died two days back while getting charged. The phone just won't turn on. This happened once previously and i got my motherboard replaced from the Samsung Authorised Service Centre at the cost of INR 9,000 [USD 150] (almost at 1/3rd the purchasing price of the phone).
This time i went to a third party repair vendor in Mumbai, India called phonecare.in
They are telling me that the power IC on the motherboard has fried and it needs to be replaced quoting a price of INR 2,000 [USD 30]. They also advised me that overcharging the phone like keeping it on charge while sleeping makes the IC burn out. Is that true? Please let me know.
Also, any Indian users here, please let me know your feedback on phonecare.in as well.