Upgrade from 1.19.1-s-20240112372761-dev-vayu to current version/ saving all data peviously

[piero]

have a read to my latest contribution :

@piero

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to determine if it is possible, you must answer to those 4 questions :

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1. What was the StockOS version installed before /e/ ?
2. What is the current StockOS available ?

If answers to 1 and 2 are the same, you can have a go for dirty upgrade !

If answers to 1 and 2 are differents, you must answer to questions 3 or 4

3. does latest /e/ build include the upgraded needed parts of the firmware ?
   download it and have a look inside the .ZIP (you may need to extract it)
   what to do if you find a payload.bin file ?
4. does Lineage wiki offer a firmware upgrade solution for this device ?

if answers to 3 and 4 are no, you will have to install latest available full Stock OS (relative to the android version of the /e/ build you want to install → not higher)

if answer to 3 or 4 is yes, you can have a go for dirty upgrade the firmware, then dirty upgrade the system !

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