High-tech device expertsiFixit conducted a traditional disassembly of Samsung's new Galaxy Note 20 and Note 20 Ultra smartphones in order to assess their maintainability. In parallel with the analysis of the disassembly process, experts were able to partially explain the problem with excessive overheating of some smartphones of the Galaxy Note 20 and Note 20 Ultra line.
During dismantling of smartphone parts, engineersiFixit drew attention to the modified processor cooling system. Instead of vapor chambers and copper heat pipes, traditional for Samsung smartphones, the designers of the Galaxy Note 20 and Note 20 Ultra used several layers of graphite thermal spacer. It is noteworthy that the author of the JerryRigEverything channel, Zach Nelson, also announced a similar cooling system in the new Samsung models. However, there is a video on the network in which the disassembled Galaxy Note 20 Ultra models have Samsung's own cooling system with copper heat pipes.
Thus, Samsung has released severalvariants of the Galaxy Note 20 and Note 20 Ultra models with different cooling systems. The company did not respond to a request from journalists about the reasons for the modifications. It is assumed that different refrigeration systems have been designed for different regions.
However, the problem of overheating at varioususage scenarios: from shooting videos to gaming applications, is one of the most relevant for the Galaxy Note 20 Ultra. The SamMobile resource notes that in just 5 minutes of shooting in 8K mode, the smartphone warmed up to 46 degrees Celsius. Meanwhile, PCWorld provides examples of using an infrared thermometer to measure the temperature of this smartphone model and claims that under load the temperature barely exceeded 37 degrees Celsius. Different results may indicate the use of devices with different cooling schemes.
Returning to the Samsung Galaxy Note 20 and Note 20 Ultra maintainability test, it should be noted that iFixit experts gave smartphones a low score of 3 on a ten-point scale.
Among the positive aspects of disassemblysmartphones were noted for the use of standardized screws, resulting in a single Phillips standard screwdriver for removal. Also, many parts are modular and can be easily replaced with new ones.
There are more negative facts. This is, first of all, difficult battery removal, not suitable for consumable components requiring periodic replacement. It is also noted that the repair of the display is extremely time consuming, complicated and costly. However, the most significant problem is the excessive use of glue when assembling the Galaxy Note 20 and Note 20 Ultra. As a result, it takes a lot of time and effort to disassemble the adhesive joint, then a thorough cleaning of the surfaces and subsequent application of the adhesive for reassembly is required.