Follow these steps to flash your Nokia TA-1235 and fix software-related issues:
If the device is not completely dead, you can try a first: Nokia 150 (2023) user guide: Keys and parts - HMD Nokia Ta-1235 Flash File Infinity Best
Download links are provided for official, unmodified firmware. Always scan downloads for malware. Follow these steps to flash your Nokia TA-1235
Disclaimer: Flashing firmware carries the risk of voiding warranties and rendering the device inoperable. This paper is for educational and technical service purposes only. Always ensure a backup of data and original firmware is available before proceeding. Nokia Ta-1235 Flash File Infinity Best