ASUS Zenbook UX6404VV-M3005W
remove bios password, i tried saving current bios with aptio 5 afu but tool can't read bios content so i decided to get some help before doing smthing irreversible,
SN=R4N0CX01M525140, CN=J1WJ, MFD=2023-04, P/N=90NB11J1-M00050
post moved...next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread.....
Ellos
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Last Activity: 07-14-2025, 07:07 AM
Joined: 06-27-2025
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ASUS Zenbook UX6404VV-M3005W
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Samsung s21 sim recognized but no signal
Hi everyone,
I'm just starting out with smartphone repairs and picked up a Samsung S21 to work on. Everything functions perfectly except there's absolutely no cellular signal. The SIM card is recognized, WiFi works fine, but zero network signal.
I've tested my SIM in another phone and it works perfectly with good signal, so it's definitely the phone.
From what I've read online, this issue is usually caused by the network chip needing to be desoldered and reballed since one of the solder balls might be cracked.
I think I've located the SOC that...
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