upon Connecting my combo touch to my iPad 7th, it worked fine, but after updating its software some keys became moving cursor instead of corresponding letters. (Keys are 7, 8, 9, u, I, o, j, k, l, and m) Please help me solve this issue.
iPad is upto date
Disable Assistive Touch - or explicitly disable Mouse Keys:
Settings > Accessibility > Touch > Assistive Touch - set to OFF
Settings > Accessibility > Touch > Mouse Keys - set to OFF