DrMac247

01/06/2026

**MacBook Pro A2338 M2**

Unable to turn on, and the screen has no backlight.

The customer said that the MacBook had been sent to iWarna for repair, but was told that “the problem on CPU” and suggested replacing the entire logic board.

After our detailed check, it was found that the actual problem was not the CPU, but part of the power supply line (Power Rail) and the entire backlight circuit (Backlight Circuit) were faulty.

We have repaired the power supply line and backlight circuit

**Alhamdulillah, MacBook has successfully returned to normal operation ✅✅✅**

**No need to replace the whole logic board! **🎉

14/05/2026

Today, we have a MacBook Pro A2338, which can’t be turned on.

Ex repair from another store “iWarna 🍊 🪴User said”

We checked the circuit board, and it was half short on the PPBUSS with a diode value of 0.190.

Try to check a found ur730 and ur700 make half short the PPBUSS

Replace it PPBUSS to get the normal diode value of 0.430

But the mac still can’t be turned on and is stuck on 5V and pulse ampere check with thermal cam MPMU flashing heat and replace it with another MPMU.

Alhamdulillah MacBook back to life ✅✅✅🙏🏻🙏🏻🙏🏻🌾🌾🌾

17/01/2026

MacBook Pro A2442
Mati Total
Alhamdulillah solved ✅✅✅

17/01/2026

MacBook Pro A2338
WiFi problem
Alhamdulillah solved ✅✅✅

10/01/2026