We are still collecting feedback on Wiko devices, so the following may not be a exhaustive list of issues. Wiko devices are however definitely problematic in terms of non-standard background process optimizations and adjustments to the settings that need to be done to make apps work properly.
Go to Phone Assistant / Manager > Battery > turn off Eco Mode.
Go back and go to Manual mode
Tap on the Gear icon on top right > Background apps whitelist > Now select Your app
Go to dialer and put the code
*#*#86569726#*#* and uncheck Lowram Enable And Background enable.
Note: This needs to be done again after reboot.
So far, no workarounds on the dev side are known.
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