No. Never flash RM-902 firmware on RM-899. Use only “Nokia Asha 501 Dual SIM RM-899” files.
If you don’t have a Windows PC or face persistent errors, try these methods: nokia asha 501 rm 902 flash file download
The Nokia Asha 501 (RM-902) is a compact feature phone from Nokia’s Asha line. This post explains what a flash (firmware) file is, when you might need one for the Asha 501 RM-902, how to obtain and apply it safely, and important cautions to avoid bricking or voiding warranties. nokia asha 501 rm 902 flash file download