macbook pro wifi starts and find the network just one time after booting and then stops. what to do.
please help.
please help.
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I received a 2013 Macbook Air A1466 820-3437-B motherboard with serial number C02L6GQ9FSV8 that came in WITHOUT a bios chip. I got a new bios chip and reprogrammed it. Macbook now powers on but doesn't boot the SSD. I've flashed a ton of bios but still same problem. Windows installation works with this Macbook but never a mac installation. Unfortunately, since I didn't receive this macbook with a bios chip, I don't have the original bios. What can I do now?... -
WiFi menubar symbol shows hardware stays connected (even when issue occurs)
WiFi adapter shows normal connectivity symbol & stats: Using Opt+WiFi shows:
• Tx Rate: 867 Mbps
• RSSI: -44 dBm
• Noise: -90 dBm (same as working MBP connected to same router)
After ~1 min - 7 min, connectivity is lost (no traffic works) until I Disable / Enable WiFi (temporarily fixing again)
Inspected Antenna connections (look secure) & UP / DL is quick when working (same as good laptop)
• DL = ~400 Mbps
• UL = ~17 Mbps... -
Hi everyone,
I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.
⚠️ New Problem: One USB-C Port Only Works in One Orientation... -
As per the the rules, here are the specifications of my laptop :- Make and model number : Thinkpad T440P
- Serial number (S/N) : PB-03A7V7
- Model type - Model (MTM) : 20AW-S2N800
- Bios version : 2.50 (not 100% sure, that's what I remember)
- Upgrade screen, keyboard, trackpad, RAM and CPU
- Reboot and use the laptop for a bit : everything is working fine
- Shutdown (no power) and upgrade WIFI with unsupported chip (AX210)
- Boot up the device : bios warning, as expected
- Shutdown the device again (no power)
- Connect the 8-pin clip of a CH341a
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Hello all,
I am repairing a Macbook A2337 and i have a problem
The Macbook is stuck in restore as someone before me tried a DFU restore and bricked the device, now i can't do a restore as AC2 throws error 1 which is related to the trackpad.
When i turn on the device i get the trackpad click for a few moments and then nothing, i tried 7 trackpads and 7 trackpad flats, i know all 7 are functioning okay, especially one as i use it for testing and DFU restore.
I inspected the whole board and everything seems fine.
Can anyone help me as i didn't fiddle with trackpad...
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