
L2 Repair Document TCLCommunication Ltd.
MK20 Level 2 Repair Document
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Content
1Level 2 repair process ..............................................................................................4
2Warranty Check and Visual Inspection ...................................................................4
2.1 Warranty confirmation of L1.....................................................................................4
2.2 Visual mechanical check..........................................................................................5
3Battery........................................................................................................................5
3.1 Battery information...................................................................................................5
3.2 WARNING OF BATTERY disassembling..................................................................6
4Software download ...................................................................................................7
5Disassembly and assembly MK20.........................................................................11
5.1 ESD Safety...............................................................................................................11
5.2 Disassembly tool.....................................................................................................11
5.3 Disassembly process...............................................................................................11
5.4 Disassembly Notice .................................................................................................17
5.5 Reassembly process................................................................................................17
5.6 Disassembly process evaluation............................................................................18
6Disassembly Complete...........................................................................................18
7Level 2 repair...........................................................................................................19
8PCBA exchange.......................................................................................................22