I have code 99 on my uniwell nx 5400 how do I fix it?
How do I fix my uniwell NX5400 cash register?
Uniwell?
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uniwell NX5400 cashregister?
how do i change prices on my uniwell cash register model 5400f?
uniwell cash register?
My cash register Uniwell shows 1E03 how to fix it?
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how to change date on uniwell px5700 cash register?
how to fix frozen screen on uniwell dx 915?
7 on key pad not working?