I upgraded my version to the latest version 1.7.7.8 and some modules I can't upgrade in back-office only in manual mode ( I buy it from addons ) but this way I lose my work and go back to standard mode. Does anyone have an idea, please?
Example: I working on this "Registration" page and making some changes
this page origin of Prestashop
And this the changes
Note: This is just an example and I found the solution and I mean in other modules when I press upgrade this is what I get and I have it .zip
When I does the copy and paste I lost my work
Changes you've made to the registration page have nothing to do with third-party modules.
Uploading the ZIP of an updated module will overwrite only the module in /modules/{module_name} folder (and its files).
So uploading an updated version will "start" the upgrade procedure provided by the module developer but nothing else.
I guess for your modification you have acted in the core (or theme / translations) so nothing will be lost with a simple module upload/upgrade.
If I have misunderstood and you have actually made some changes directly on some third-party module files, this is not the "Prestashop" way to work...
There are several ways to override module template in your theme (just put the custom TPL in /themes/mytheme/modules/xxxx directory).