My Lenovo laptop has of late refused to read my Tecno J8 via USB. What is the remedy?

Mine too

1.
a medicine or treatment for a disease or injury.
"herbal remedies for aches and pains"
synonyms:treatment, cure, medicine, medication, medicament, drug, restorative; More
2.
the margin within which coins as minted may differ from the standard fineness and weight.
verb
1.
set right (an undesirable situation).
"money will be given to remedy the poor funding of nurseries"
synonyms:put right, set right, set to rights, put to rights, right, rectify, retrieve, solve, fix, sort out, put in order, straighten out, resolve, deal with, correct, repair, mend, redress, make good; improve, amend, ameliorate, make better, better
"little has been done to remedy the situation"

I have two issues with my boom J8, 1. The first one is THE MISC FILE, this file grew to 8GB in a short period of time. Yesterday, on 15th September 2016 I.