If you are still using the SM-T285 on its original software, you may encounter several "legacy" issues as apps stop supporting Lollipop: Google App Crashes : Users frequently report errors with "com.google.process.gapps" smt285 android 10 upd

Installing a custom ROM is a technical process that voids your warranty and carries a risk of "bricking" the device. The Samsung Galaxy Tab A 7

FAQs

If this is for a custom ROM (LineageOS/GSI) , replace "OTA Update" with "Download the GSI image from the link below." OTA (recommended): Through Settings → System → Software

The latest official firmware remains Android 5.1.1. You can check for any minor security patches by going to Settings > Software update > Download and install Custom ROMs (Android 10+):

Installation Paths

• OTA (recommended): Through Settings → System → Software update. Vendor-signed, safer, preserves data.
• Factory image / manual flash: Use official firmware and tools (e.g., Odin for Samsung or vendor-specific flash tools). This is riskier—may wipe device, require correct files, and trip OEM counters.
• Custom ROMs: If using a custom Android 10 ROM, follow ROM-specific instructions; ensure TWRP and matching vendor blobs.

Remember to always download ROMs from trusted XDA Developers threads, not random file-hosting sites. Never install a "ZIP" that claims to be an official Samsung Android 10 update for the SM-T285 – it is a scam.