Imac model A1418 - EMC 2638
BOARD NB : 820-3588 A
NEED TO CLEAR PASSWORD
BOARD NB : 820-3588 A
NEED TO CLEAR PASSWORD
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Last edited by SMDFlea; 01-25-2022, 07:36 AM. Reason: Added A1418 - EMC 2638 to thread title,moved from laptop bios requests forum..... -
Last edited by Vesko356; 01-25-2022, 07:01 AM.----------------------------------------------------------------------------------------------------------------------------------------------------------
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Re: Need for imac to clear password
Hi, I'm so happy I found this thread. I have the exact imac now with the firmware password problem. I only have the riffbox v2 jtagg programmer (https://www.riffbox.org/category/riff-box-version-2/) would really need instructions on how to connect my box to the chip on board or desoldered . So I can read out the dump and send here.
Thanks in advanceComment
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Hi guys, I need your help again.
I have this iMac from a customer that shut down during a storm along with all the other devices in the house. In particular, the router, connected via Ethernet to the iMac, caught fire.
When I removed the screen from the iMac to check the status of the LEDs, I noticed that none of them were lit. I had a perfectly compatible and working power supply, so I tried it right away, but the problem remained the same (no LEDs). With the thermal camera, I noticed only a slight warming (32 degrees) of the NCP1605BG chip on the power supply. The rest was completely... -
Hello everyone, I come here to tell you my problem regarding the power-on password. It is not a bios reset demand, and i can't have any access to windows. This is the bios and power-on password that is blocking all other things.
My Omen 15-dh0052nf purchased second-hand was configured with the bios password upon purchase (very simple password :P ).
Having decided to sell it in order to get something more powerful, I reset all BIOS settings and set a blank administrator password. But the power-on password cannot be changed to a blank one so I let the actual password set.... -
I have this Asus with password bios, i try decod with the post (ASUS TP412 PFA)
https://www.badcaps.net/forum/troubl...=2#post1544866
but, i cant find the string...so, Ineed help. The bios is attached.
...
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Hey! I disabled BIOS secure boot a while back ago when I tried to dual boot my system, then after that I set a blank password. Now the BIOS is asking me for a password which I set is as blank and its not accepting it!. Looking at other thread managed to dump BIOS and using hex codes, tried to find out the system supervisor password, but can't decode itβ! Anyone help me decoding this please. Thanks!... -
Hello friends,
I have this unit with no backlight on screen. After inspection i determined there is a shorted capacitor on BKL_BOOST circuit. I removed the capacitor, short is gone but backlight still not working. I found that Q9702 is not open and R9721 is only around 70kOhms but according to schematics it should be 301k. I removed the resistor and connected the gate of Q9702 directly to GND. Now i have 12v passing by the mosfet to turn on backlight IC LP8561 (U9700) but BKL_BOOST circuit is not working. I can measure only 12V there but it should be around 60V.
Can you...
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