Clean firmware for MacBook Air A1466 820-3437-B

Hi,

If anyone needs, I had to buy this chip on eBay, i did 3 x reads attached.

Does it worked for you?

Did you changed the serial number with the macbook you own or you flashed with the serial on the DUMP file?

Hi

Yes it did work, yes change with the serial number of macbook i own.

drexxx wrote: Hi

Yes it did work, yes change with the serial number of macbook i own.

Thanks

Hello. I have some mac. I trr write ths dump to m macbook air. Model same A1466 820-3437-B.
I try change serial number. Now lock gone, i can boot mac to os, but it ask user password. So i need reinstall os, tr boot to recovery mode: comand and r key combination, but when mac booting to recover mode it freez with loading symbol. So what can be wrong? I have 3 diferent backup and same result? how solve this problem? If you got this dump from other place and sa what working with you mac, it must work also with mine, but not working.
Posible reason what i write not corect sn from mac cover? Or it does not metter. Thanks.

Yes try clear reset PRAM after writing.

Okey. I need some more info. Need PRAM reset. But this need do after first power on mac after bios rewrite? I try reset, but situation same. Can not load full recovery. Can be foult if wifi module was removed?

drexxx wrote: Hi

Yes it did work, yes change with the serial number of macbook i own.

can you please point me to the serial number offset in this file? or string that I should search for

thank you!

the serial on mine (bottom case) is 12 chars long.

I think I found it? offset 630460