Pub user
"
Details seem to be under wraps at the moment (why?) but I believe the 'fix' incorporates the following: a software change to the charging system, re-designed cells with better quality-control, re-configured battery internals (cell arrangement), insulation between cells, more comprehensive monitoring of cell condition and monitoring of insulation condition."
Why are the details under wraps? Because anything is better than admitting you still don't understand what caused the problem in the first place, all the above is either a rehash of known facts or vague in the extreme.
It appears that Boeing's
PR team are having more success than their engineers at present, let's hope the engineers play catch-up real soon.