I’ve got a problem with my Sony Xperia Z3 Tablet that I had as well with my Sony Xperia Z3 Compact smartphone during last Christmas time. Few days after I insert a 64GB micro SD card the phone slows rapidly down, apps aren’t working properly and I can’t find data on the SD card although the SD card is shown in the settings. Also the battery running much faster out of power (within 12 hours also when I’m not using it) and the device is getting hot (40°C).
First, when this problem appeared on my smartphone I thought of a defect of this certain device. After it was repaired 3 times and the problem was still there, Sony wanted to replace the smartphone with a new one. I refused and received my money back (less than I paid for) because the whole procedure took 4 months. The fact that Sony couldn't fix the issue after sending it 3 times under repair and wanted to replace it with a new one shows that there is a problem!
I build up trust again with Sony and bought a Sony Xperia Z3 Tablet 32GB. But unfortunately the same problem appeared again and my trust is destroyed. So it wasn’t only the certain smartphone I bought which shows this issue, the whole Xperia Z3 family seems to have this problem. I’m also not the only one. Other people as well have the same issue: /t5/Xperia-Z3-Z3-Dual/Z3-unable-to-mount-64GB-micro-SD-card/td-p/850563/page/4
For further investigation of this problem I show you the information and what I have done so far:
-I tried 2 different SD cards: SanDisk Ultra microSDXC UHS-I, Class 10, 64GB (SDSDQU-064G) (first I thought the problem was because of a defect of this SD card. Sandisk was very kind and replaced it with a new one) and SAMSUNG microSDXC Card Pro UHS-I, Class 10, 64GB (MB-MG64D/EU) (brand new one)
-exFAT and FAT32 format don’t solve the problem
- The SD card is filled with 30 GB of data: mainly music and eBooks, and some pictures and few videos. I checked all the data: no file is corrupted! I didn’t transfer apps to the SD card.
-I bought the Smartphone Z3 Compact and the Tablet Z3C WIFI BLACK SGP612
-Tablet is running with 4.4.4 Kitkat
-I also have to mention that I don’t have the SD card problem with my Sony Ericsson Xperia ST18i (now 4 years old, and I’m still using it because the Sony Xperia Z3 Compact smartphone didn’t worked out) with both SD cards!
So, is there a solution for this problem?
If not, I send a request to Sony: find a solution for this urgent problem. Don’t deny it by saying there isn’t a problem with the device because you put a SD-card into one of your smartphone/tablets and everything is working fine. Take it serious! This problem appears few days after the insertion of a SD card. It appears faster, when you turn off and on the tablet several (3-4 times). Reset to default only helps temporally, the problem appears again after you insert a SD card. So just do something to solve it! Otherwise you have to take it back because of breach of warranty (compatibility with SD-cards up to 128GB are guaranteed)! If not, I will for sure (reconsider) refuse to buy any Sony devices in future. I’m not the only one with this problem. Probably other would follow my Sony free future.
