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iPhone X Says No Service? Here's the fix!

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iPhone X Says No Service? Here's the fix!: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 iPhone X Says No Service? Here's the fix!: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 iPhone X Says No Service? Here's the fix!: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

  • The phone goes with activation process. Click the icon at the bottom right corner. Serial number displays normally on the screen. No IMEI number on the screen. The phone shows a No Service error in the upper-right corner.

  • We can confirm now that the bonding pad has not been pseudo soldered. The fault is related to the lower layer. So we need to further check the lower layer.

  • Run diode mode measurement of signal relevant pins on the bonding pad. Nothing goes wrong.

  • Continue to run diode mode measurement of capacitors related to the power supply circuit of U_PMIC_E. Nothing goes wrong.

  • Judging by this, the fault is probably related to U_PMIC_E or U_MDM_E.

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