🔧StellarXcell Decode Battery - Professional Use Only (For Phone Refurbishers)

• Must transfer original BMS flex from olded orginally battery
• Requires 3uTools flashing (iOS 17.4+) to reset health to 100%

Button label

Installation Video-First Sept

1.Transfer original BMS flex from older orginally battery to Stellarxcell Decode Battery

Link For All Model

1.Warm Tips In First Sept

After connecting the older original BMS flex, in the first boot,the display of 100% battery power confirms a successful connection.

(See picture in left)

2.Warm Tips In First Sept

After the initial boot, the "Important Battery Message" should disappear upon the second boot.

This confirms that the Decode Battery is functionally successful.

However, due to iOS restrictions on third-party batteries, the system may still display the old battery health(87%) percentage instead of 100%.

To resolve this and update the display to 100%, the phone must be flashed using 3uTools.(See picture in left)

Installation Video-Second Sept( Phone above iOS 17.4)

Installation Video-Second Sept ( Phone above iOS 18)

Frequently Asked Questions & Troubleshooting

1. If the battery level does not show 100% during the first boot after connecting the original BMS flex, it means the Decode battery is not yet functioning properly. Do NOT proceed with flashing at this stage.
Flashing is only used to restore the old battery health data to 100%. It does not remove error pop-ups. Flashing is the final step after a successful BMS flex connection has eliminated the "Unknown Part" warning and pop-up.

If the battery level is not 100% on first boot:

  • (1) The connection may be unstable. Reconnect the BMS flex carefully.
  • (2) If the level still isn't 100% after multiple reconnection attempts, try installing a different battery and booting the phone. (This helps clear residual data from the phone's motherboard.)
  • (3) If both methods above fail, the Decode battery function may be inactive, or the original BMS flex may be damaged.
  • In this case, contact our customer service for one-on-one assistance.

2. After the first step is successful – when non-genuine messages and pop-ups are gone, but the phone still shows the old battery health – it's time to flash the phone via 3uTools to reset the health to 100%.If flashing fails repeatedly, try using a different USB cable or test with another battery.

Button label