How to Soft Reset — BLU J4
How to Soft Reset — BLU J4
The BLU J4 is a 2019 Android 8.1 Oreo smartphone with 1GB and 32GB internal storage. It features a 5.5", IPS LCD, 720.0x1440.0 display and is available in Blue, Black, Brown.
The J4 is equipped with a Li-Po 2200 mAh, removable, a 8 MP, 720p@30fps main camera, a 8 MP, 720p@30fps front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 158 g.
Performing a soft restart on your BLU J4 is the quickest way to resolve minor performance issues, app freezes, or unresponsive touch screens without losing any data. Unlike a factory reset, a soft reset simply reboots the device and clears temporary memory, making it the recommended first step for any troubleshooting.
Does not erase any data. Always try this first.
On your BLU J4: hold Power for 2 seconds
Tap 'Restart' or 'Reboot' in the menu
Wait ~30–60 seconds for the restart to complete
Force restart if frozen: hold Power for 10–15 seconds until screen goes black
Device reboots automatically — no data is lost
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