All modes of diag and test mode to bypass FRP and activate 4G

All Android Code

Diag Mode Samsung

Vivo Diag Mode

Redmi Test Mode & Diag

Motorola DiagMod

onplus open port diag

Test Mode

1. Samsung *#O*#
2. Xiaomi *#*#6484#*#*
3. Motorola *#*#2486#*#*
4. Alcatel *#2886#
5. OPPO *#899#
6. Vivo *#*#225#*#*

Diag Mode

1. Samsung *#0808#
2. Samsung ##366633#
3. Samsung ##3424#
4. VIVO *#558#
5. OnePLUS *#801#
6. OPPO *#801#
7. Xiaomi *#*#717717#*#*
8. Xiaomi *#*#13491#*#*
9. Huawei *#*#2846579#*#*