Lenovo A5500-hv Custom Rom -

Yes. Download the stock firmware (A5500-hv_S000123_140527_ROW) and flash it using SP Flash Tool.

Using TWRP, create a of your stock ROM (Boot, System, Data). This is your lifeline to go back if something goes wrong. Lenovo A5500-hv Custom Rom

Yes. Ensure the ROM you download says "HV" (Huawei Voice – MediaTek variant) or "a5500-hv" explicitly. Do not flash ROMs intended for the Wi-Fi only "A5500-F" model. This is your lifeline to go back if something goes wrong

A Custom ROM is a third-party, aftermarket firmware based on the Android Open Source Project (AOSP). For the Lenovo A5500-hv, the stock Lenovo UI is bloated, slow, and vulnerable to security risks because KitKat hasn't received a security patch since 2017. Do not flash ROMs intended for the Wi-Fi

The Lenovo A5500-HV will never be a gaming tablet or a 4K streaming beast. However, after flashing or 16.0 :