Re: asus X507MA



Tried again today, no luck.
I found some intersting posts from other forum (in attached image). First post got the problem solved with some other bios which i can't try, because I can't access the link (not a member of that forum).

But symptoms are identical.

Also tried to swap RAM, as sometimes similar issues can happen with bad RAM....

Re: asus X507MA

Let me know if you need any additional information.

P.S.
Thanks for that link, it's very interesting to understand more things on what's going on here....

Re: asus X507MA

Not working for me. It got better (battery started charging, all voltages are present, but cpu is just getting warm and no display, it reacts to power button too). Attaching backup dump....

Re: Apple macbook pro A1398 not posting?



My mac was A1465. Found bios dump on this forum by board number and edited this dump to change serial number, so it matches with the case....

Re: Apple macbook pro A1398 not posting?

Got my problem solved by reflashing chip. Program code was partially corrupted. Good luck.

Re: Apple macbook pro A1398 not posting?



When i turn on my laptop with smc bypass method charger led won't turn on also, so it's normal. Also i think it get's in limp mode, because fans turn max speed and computer is slow.

Even more ;D
When I disconnect trackpad with keyboard fans also start build up speed, when connected back fan is idling again, so check that....

Re: Apple macbook pro A1398 not posting?

My board is A1465, without dedicated gpu. We have very similar problem. I tried to update macOS and also get stuck at apple logo, no chime before that. After reset i get error that checking firmware failed. Also without smc bypass laptop don't post and shuts off after exactly 35sec and turns back on automatically and loops like that. I'm suspecting bad efi, i ordered chip programmer and will try to reflash. Also i heard that bad serial number prevent apple laptop from booting and in my case when booted in successfully, there are no serial...

Re: Apple macbook pro A1398 not posting?

Okey, so I pushed forward with my problem. I found a SMC Bypass method where you have to disconnect battery and charger, then press and hold power button for 10sec and while holding plug in charger and still hold while systems starts. My computer started to chime and booted successfully, but there are other issues. You should try this method also

Re: Apple macbook pro A1398 not posting?

Any success to repair this? Have same symptoms...