How to Root Samsung Galaxy On5 SM-G550F For unlock and IMEI repair

 Firstly Set USB Debug mode

Provide following steps:

1. Disconnect USB cable from phone (if connected).
2. Go to Menu->Settings->Applications->Development.
3. Turn on "USB Debugging" option.
4. When message is appear press "Yes".
   
5. Press "Read Info" in  Samsung software.

*. For Direct Unlock

1. Root your phone manually.
2. Connect powered-on phone to PC via Micro USB cable.
3. Install necessary driver.
4. Click "Unlock" button.
5. Follow software instructions (prompts).

**. For Read unlock codes

1. Root your phone manually.
2. Connect powered-on phone to PC via Micro USB cable.
3. Install required driver.
4. Click "Read codes" button.
5. Follow software instructions (prompts).

Note: To enter unlock code, please perform the following steps:

1. Turn phone off.
2. Insert unsupported SIM card.
3. Turn phone on.
4. Enter PIN code (if needed).
5. In unlock PIN window enter proper unlock code and press "Unlock" button.
6. Restart the phone.