I have noticed that for some contacts the threads ae ok. Messages are coming in and going to the original thread. So its weird. I understand a hard reset may fix it and appreciate the advice.. But seems a little drastic at this stage. I will persist a little longer and hope it gets fixed or an answer comes up soon.
for the contacts where the message threads have forked, do the contact numbers have spaces or do they look different? Like one contact thread shows the number as 07123456789 and the other shows +2547123456789? +254 is my country code
There are 4 types of Reset...
- Soft Reset
- Hard Reset
- Factory Reset
- WDRT
Soft Reset is holding the Volume Down & Power buttons until the phone vibrates and reboots (about 15 seconds). This reboots the phone with a cleared out RAM and Cache. No data is lost. It is good for when the phone freezes or you experience a glitch of some sort.
Hard Reset really should be a last resort. Use Hard Reset when the phone is completely unresponsive and no other method will work.
- Power off the phone > hold Volume Down > press Power > keep holding Volume Down until you see the exclamation (!) screen, then immediately release the Volume Down
- Now tap Volume Up / Volume Down / Power / Volume Down
- You should see the spinning gears and your phone will reflash the last OS version held in recovery. You do loose data, but get your phone back. Sign into your Microsoft Account and restore your backup during the set up.
Factory Reset is Done through Settings > About > Reset your phone (8 & 8.1) or Settings > System > About > Reset your phone (W10M).
- You should see the spinning gears and your phone will reflash the last OS version held in recovery. You do lose data, but get your phone back. Sign into your Microsoft Account and restore your backup during the set up.
In case of Hard Reset & Factory Reset the phone goes back to the exact version you were running when you performed the reset.
WDRT For right now, Windows Device Recovery Tool is only flashing 8.1 to models that did not launch with 10 so it is the way to revert if you don't care for W10M: Windows Device Recovery Tool FAQ