mohon bantuan.nya agan2 dsni.. kmaren ane upgrade OS 6 official dr os 5... abiz instal OS, trackpad gk bsa d tekan tengah + digerakin... Skrg ane downgrade lg k os 5 lom bsa normal jg,, cma tekan tengah aj yg udh balik normal tp blm bsa d gerakin... os 5 bawaan.nya ane gk inget gan.. jd ane instal
