12850 Mcu

[moftasmart]

12850 mcu comes in the immo box of Toyota corolla Type-H
I really need your help to find the tool to read and write this ic
This is a 48 pin ic.
I want to find the data sheet for this mcu and I want to reprogram it and hence I need to find the tool for it
On its 12th pin it has 5v and 11th pin has ground.
Does anyone knows which family does this mcu belongs to and wwhat company makes this ic?
I have over 10 cases which can only be solved of I can reprogram this ic.I also have new 12850 mcu which I bought frpm China but 2 years of searching and I haven't yet found a perfect tool to read and write this mcu.
I would be very great full for all your help
Thankyou!477874

[Saman]

You are the first and I am second one to think about reading and writing those MCU of G and H type immo of toyota but still there is no chance to gain help, here all of them say change immo to new one and program key then synchronize with 4 and 13 .

[Bllinda]

And why not here ... (http://www.digital-kaos.co.uk/forums/showthread.php/622886). (89780 11910 42180 ir 89780 12850 06130)

[Saman]

Hi Bllinda i thing Mcu is same for all toyota G type and mask is as serial number we should try to find what is type of this MCU