User:Fxc

Safety

Thermal Safety

With the Allwinner A64 being an older generation SoC with a large 40nm chip, the phone produces quite some heat under medium or higher use and especially also during charging or when using USB accessories, like a docking station. Measurements to prevent damage to the phone and to its surroundings need to be taken by the user. This includes especially a proper handling of the phone: do not charge the phone in a way where heat builds up around the phone without being able to escape. Especially don't charge your phone under a pillow, blankets, in pockets or bags. Charging the phone produces heat and charging the phone in a way, where the excessive heat can't dispose around the phone poses an immediate fire risk.

The user might notice that the phone gets warm under usage, compared to phones with more up-to-date hardware. Under normal circumstances these temperatures don't pose a risk while being in the levels within the safe operating temperatures (which lay far beyond the point where components can be too hot to touch). Higher temperatures might especially be experienced on the top side of the screen and on the inside of the phone at the RF shield of the modem. The higher temperature of the RF shield of the modem is commonly caused by the SoC on the opposite side of the mainboard, the RF shield of the modem is used to dispere heat of the SoC. In newer mainboard revisions starting from 1.2a there are also thermal pads on the back cover and between the SoC's RF shield and the screen, dispersing heat on the screen and on the back cover. In the past there has been safety issues regarding thermal safety functions, causing temperature reads to not properly work over an extended period of time, which was causing heat damage in some cases (see the documentation of that issue by the developer Megous here and here). While the developers are working hard to prevent such issues, they can't be excluded under all circumstances (see State of the software). The users are expected to monitor their phones' thermal safety at every point at this state of the software.

Under GNU/Linux the phone's behavior can be altered via the Thermal Sysfs driver. To achieve the phone heating less up the temperature trigger points can be lowered:

Ubuntu Touch

Ubuntu Touch
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A Mobile Version of the Ubuntu Operating System made and maintained by the UBports Community. Ubuntu touch is a mobile version of Ubuntu developed by the UBports community.
Download location	UBports PinePhone project
user-id/password	abc
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What works, what does not work?	Scroll down to the bottom of this page.
How to contribute and report defects?	See UBports gitlab page.
Contributions	See UBports website for how to donate.
Installation
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License	CC0
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