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Apparently theres this thing called 'service mode' or 'engineering mode' for most / some / all ? devices. Was news to me, can anyone tell me how to access this on the titled tablet without a dialer (wifi only). Many thanks!

I tried app store - MTK engineering mode - says its made for previous versions of android - may not work, why nothing since, it was released late 2019 (or am I missing some big event!) Maybe Lenovo changed their service policies or this is to do with 'treble project'?

Mamba76
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  • What do you actually want to achieve in service mode? – Robert Apr 06 '21 at 07:06
  • I want to change the volume steps (granularity) – Mamba76 Apr 06 '21 at 11:30
  • ok, I found in /system/default.prop a setting - ro.factory_mode=0 and ro.debuggable=0. I changed both values to 1, saved, rebooted and I have some type of service mode although Iv no clue what or how to do anything with it! I have posts all over the net about trying to get more volume steps on my device, this is turning in to a royal pain in the ass. I cant use this device as a car head unit until I fix these poxy volume steps..bah humbug! – Mamba76 Apr 06 '21 at 12:29

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