TRICK:
USE CUSTOM DA + AUTH
SELECT MANUAL BOOT MT6737M
Operation : Reset FRP
CPU : MT6737M
Storage : EMMC
DA : DA_SWSEC_ANDY4_1652.bin [MTK_AllInOne_DA_v3.3001.00.00]
Using Custom DA!
Waiting for Phone in BROM Mode...
Connect Power Off phone within 30 secs...
Port : MediaTek PreLoader USB VCOM_V1632 (Android) (COM50)
Connected to BROM.
Sending Download Agent...
connect DA end stage: 2, enable DRAM in 1st DA: 0
Connected to Download Agent..
Syncing with Target...
Reading Partition Table...
Reading Device Information...
Brand : Lenovo
Manufacturer : LENOVO
Model : Lenovo TB-7504X
Prod. Name : LenovoTB-7504X
Device : TB-7504X
Platform : mt6737m
Android Ver. : 7.0
Display ID : TB-7504X_S000001_180814_GIL
Patch Level : 2018-07-01
Userdata is ENCRYPTED
Resetting FRP...
FRP Reset Done.
Disconnect Battery/Cable and Power On Phone.
[UltimateMTK Ver. 3.1]
