i stored the altcoin in bitcoin address and it was generated from bitaddress, subsequently import the address in omniwallet to view/transfer the coins.

1. 50 characters private key on hand under WIF format, start with "5".
2. I cann't import my private key into omniwallet, now i recall i used to be imported before...but not sure i copy it from clipboard or on my paper written paper.
3. subsequently i found bitaddress private key was generated with 51 characters, and i suspect my 50 characters written on paper was incorrect, and it should be 51 char instead...

Thank you for all dudes in assist to provide the script to find the missing char, but no smiling from lucky lady