I finally was able to pin down my system ui freeze problem to the sd-card slot. Symptom: CPU/GPU intensive games (like Real Racing 3) lead to system ui freezes on my padfone (regardless of docked or undocked state) for 30-60 seconds. Most of the times the system ui is restarted and the game abruptly continues. After unsuccessfully trying all available firmware versions (always a clean flash and just installing and testing RR3 afterwards) I today tried RR3 without an sd-card in the phone and was astonished that it did not freeze. I reinserted the sd-card and voila, system ui freezes again. I hoped for a defective sd-card, but as I now have tried three different sd-cards and all lead to freezes I am giving up. Seems like my A86 has a defect related to the sd-card slot...
I finally was able to pin down my system ui freeze problem to the sd-card slot. Symptom: CPU/GPU intensive games (like Real Racing 3) lead to system ui freezes on my padfone (regardless of docked or undocked state) for 30-60 seconds. Most of the times the system ui is restarted and the game abruptly continues. After unsuccessfully trying all available firmware versions (always a clean flash and just installing and testing RR3 afterwards) I today tried RR3 without an sd-card in the phone and was astonished that it did not freeze. I reinserted the sd-card and voila, system ui freezes again. I hoped for a defective sd-card, but as I now have tried three different sd-cards and all lead to freezes I am giving up. Seems like my A86 has a defect related to the sd-card slot...
Dude, I have a 64 GB Sandisk UHS-I sd-card (30MB/s - 200x) installed on my NPFI and I have RR3 also installed. Also game data is moved to sd-card and I have none of the problems that you mentioned when playing the game or otherwise. I would say possible cause of your sd-card problem could be: 1. Low speed card (possibly the main cause) 2. Low quality card from less trusted manufacturer
I tried it with 3 different cards (one being the exact same card you mentioned). The game itself resided completely in memory. A freshly formatted SD card with no content does not help either.
Just a little update to this post. Asus repair contractor seemed to be able to reproduce the error and replaced the mainboard and I got the NPFI back 2 days ago - and I can't believe how this "repaired" device could pass any test. Now it's main feature are spontanious reboots. The fastest one during the 7-step setup of the device while I was entering my Wifi password ... Btw, neither an SD card nor a SIM card need to be inserted for these reboots.