Original shield tablet - Recent update has killed my right speaker?

Hi

I have the original shield tablet running 6.0.1 build number MRA58K.40827_726.6502 software version 4.2(24.3.68.8). I recently updated the software and for some reason the right (or bottom) speaker no longer works (headphones work tho). This tablet is like new, pristine condition and was sent out as a replacement as the old one was a fire hazard, so a bit gutted. I noticed in the recent change list there was something about sound, so I am hoping its software related. Any ideas if its possible for me to roll back the software without having to wipe the tablet? Thanks

think i bricked my gf note 4 please help before i get killed!!

ok so we both have note 4s and i rooted both of our phones many months ago. i put poprocks v.13 on both phones and everything worked out fine. well over time that rom became outdated so i decided to update the phones. i updated mine to N910TUVU2EPE3_N910TTMB2EPE3_N910TUVU2EPE3_HOME.tar modem and the overdrive rom. had a few hick ups but over all went fine and my phone works great. so i decided to upgrade hers tonight. i put her phone into download mode and started odin. loaded the N910TUVU2EPE3_N910TTMB2EPE3_N910TUVU2EPE3_HOME.tar .md5 and hit start. well it failed and now the phone wont do anything. no matter what i do in odin it fails. ive tried cf-auto root it fails to. phone under download mode says blocked by r/l. odin usally stays stuck on setup connection. any ideas how to get this thing working again before she kills me?