On this page, you can download the Official Official I.Robot Rainbow J3S Stock Firmware ROM (flash file) on your Computer. The Firmware File comes in a zip package that contains the Firmware, Flash Tool, USB Driver, and How-to Flash Guide.
The official Flash File (Firmware or ROM) from firmwarecare.com helps you to re-install the Mobile OS on your Mobile Device. It also allows you to fix the device if facing any Software-related issue, IMEI issue, or Bootloop issue.
[*] Take a Backup: We recommend you to take a backup of your data before flashing the Stock Firmware, as flashing the firmware will delete the personal data from the device.
[*] Caution: We do NOT recommend you to Flash the Preloader.bin. As it may brick the device, therefore we recommend you to Untick the Preloader option in SP Flash Tool before Flashing it on your device.
[*] 100% Original: On firmwarecare.com, we only serve the original firmware released by the device company in its original state. We have Scanned the firmware using the Kaspersky Antivirus before sharing it online.