How to Turn Off Factory Mode yellow text on Samsung Galaxy Tab
1. Yellow text on LCD Samsung Galaxy Tablets and Smartphones.
2.Directly turn off after pressing power button.
3.Sim data disabled.
4. Unable to open apps while yellow text displaying on tablet.
How to Root Samsung Smartphones and Samsung Galaxy Tablets.
After successful root SU icon will be displayed on tablet or smartphone. Now you you need to download and install any Terminal Emulator from Google Play Store. Its time play with some commands on Samsung Smart Device.
Open Terminal
Type su (Allow SU to grant access if asked . )
Type rm /efs/factoryApp/keystr (if the message appear "rm failed for /efs/factoryApp/keystr no such directory") ignore it .
Type rm /efs/factoryApp/FactoryMode
Type echo -n ON >> /efs/FactoryApp/Keystr
Type echo -n ON >> /efs/FactoryApp/FactoryMode
Type chown 1000.1000 /efs/FactoryApp/Keystr
Type chown 1000.1000 /efs/FactoryApp/FactoryMode
Type chmod 0744 /efs/FactoryApp/Keystr
Type chmod 0744 /efs/FactoryApp/FactoryMode
reboot
Galaxy tablet or Galaxy Smartphone will be rebooted and you are done. Now the yellow text should not appear because this all happen when efs become corrupted. Now you have successfully repair efs. On / Off mode will be appear again. This method is personally tested on Samsung Galaxy Tab 2 , success rate was 100% . Work like charm.
For reference see image below.
After successful root SU icon will be displayed on tablet or smartphone. Now you you need to download and install any Terminal Emulator from Google Play Store. Its time play with some commands on Samsung Smart Device.
 |
| Terminal Emulator |
Open Terminal
Type su (Allow SU to grant access if asked . )
Type rm /efs/factoryApp/keystr (if the message appear "rm failed for /efs/factoryApp/keystr no such directory") ignore it .
Type rm /efs/factoryApp/FactoryMode
Type echo -n ON >> /efs/FactoryApp/Keystr
Type echo -n ON >> /efs/FactoryApp/FactoryMode
Type chown 1000.1000 /efs/FactoryApp/Keystr
Type chown 1000.1000 /efs/FactoryApp/FactoryMode
Type chmod 0744 /efs/FactoryApp/Keystr
Type chmod 0744 /efs/FactoryApp/FactoryMode
reboot
Galaxy tablet or Galaxy Smartphone will be rebooted and you are done. Now the yellow text should not appear because this all happen when efs become corrupted. Now you have successfully repair efs. On / Off mode will be appear again. This method is personally tested on Samsung Galaxy Tab 2 , success rate was 100% . Work like charm.
For reference see image below.