Xperia Z4 owners in Japan are complaining of heating issues just days after the launch of the handset. Experts suggest that the powerful Snapdragon 810 chipset is to be blamed for the overheating issue.

Sony announced the Xperia Z3+, known as Xperia Z4 in Japan, in April this year. On June 10, the Xperia Z4 started to get in the hands of consumers. The handset includes top-end features but several customers are complaining of heating issues.

One of the symptoms is that the CPU slows down to cool down the device. When the phone is overheated, the camera shuts down with a warning message that it has done so due to high temperature.

Retail shops in Japan are also warning Xperia Z4 customers over the Snapdragon 810 chip overheating issues. Japanese carrier NTT DoCoMo has also placed a poster in its stores that highlight the overheating issues on three Snapdragon 810 processor devices including the Xperia Z4, Fujitsu Arrows NX and Sharp Aquos Zeta.

The NTT DoCoMo poster also recommends some steps that customers should follow to prevent overheating and increase the life of the handset:

–Periodically shut down the phone.
–Turn the handsets off while charging.
–Back up important data on the handset on a regular basis; and
–Reduce reliance on the smartphone by using a PC or tablet when possible.

Customers may not, however, welcome such suggestions and may opt for an alternative device altogether. Sony and Qualcomm will have to work out a solution together and sort the overheating issues as these will undoubtedly result in sales loss.

While retailers are blaming Qualcomm's Snapdragon 810 chipset for the overheating issues on the Xperia Z4, the chip maker has stated in defense that the revised version of the processor does not overheat.

Sony has not yet officially confirmed the overheating issues.

Both the Xperia Z3+ and Xperia Z4 include similar hardware specifications, including the processor. The international launch of the Xperia Z3+ is just a few days away, and customers planning to buy the Xperia Z3+ may have to think twice before purchasing the handset.

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