The following method will show a full guide on how to erase everything on a device, delete any password or pattern associated with the device, delete any account associated with a device like Whatsapp, google account,Instagram e.t.c,so please take a backup of any data you require and keep them safe.
Still, having these questions?
How to factory reset TECNO Spark Go Plus?
How to wipe all data in TECNO Spark Go Plus?
How to bypass screen lock in TECNO Spark Go Plus?
How to restore defaults in TECNO Spark Go Plus?
Tecno spark go plus Kes5 hard reset
1.Turn off your device by pressing the Power key for a few seconds.
2.After that hold down Volume Up + Power button for a couple of seconds.

3.Release the Power key if the TECNO logo shows up.
4.Let go of Volume Up if the Android Robot image appears.
5.To open Recovery Mode press Volume Up + Power key.

6.Now select wipe data/factory reset. Use Volume buttons to scroll down and the Power key to confirm that.
7.Then choose yes from the menu and click the Power button.
8.At the end select reboot system now with the Power key.

Below are some tips on knowing a password without deleting data on the phone
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Use miracle thunder tool
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This is done by reading Tecno spark go ke5 files are unlocking using miracle thunder file unlock feature
- Check on how download and install Miracle thunder box