Asus ZS551KL Troubleshooting Manual - Page 13

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1. Download: ADB not found during reboot after flash image.

(1) Check the voltage of the power supply (4.2 V), and monitor the current when

power on key pressed down.

(2) Check both fixture pins' contact (T9613 & T9606)

(3) Open the device manager and test offline with a panel connected. If the panel

blackouts when showing ASUS log,

IOFPC & SUB

fastboot mode and run

fastboot erase modemst1

fastboot erase modemst2

fastboot erase fsc

fastboot reboot

If the device enters home after reboot, check RF defects using X-ray.

2. Board MMI: Equipment, key part installation that cause boot fail.

(1) Change the power supply into manual, then press power on. Monitor the

current to see if it enters home.

(2) If testing the MB, swap IOFPC/SB; If testing SB, please change MB.

401 Boot up issues-DL/BMMI

board. If it blackouts when showing android logo, please

cmd.exe:

please check the connection between

enter