Thanks to the answer [https://fr.ifixit.com/R%C3%A9ponses/Afficher/651509/Tablette+Zenpad+7+Z170C+ne+s'allume+pas+apr%C3%A8s+remplacement+de+l'%C3%A9cran#answer652029|provided in french], I rechecked and my tablet is now charging. Below the translation (with [https://www.deepl.com/translator|DeepL Translator]) of the answer and related comments:
'''Replier:'''
[quote]In order to identify the problem, it is necessary to be sure that the problem does not come from the replacement screen (it is frequent). Try to put the old screen back on to be sure.[/quote]
'''Me:'''
[quote]Thank you for the answer. The other screen is very damaged, but I will try this test. I don't have to worry about the tape not being there at all?[/quote]
'''Replier:'''
[quote]I still think that a check is still needed about the compatibility of the hardware you have acquired.
In fact, depending on the supplier of the replacement equipment, some people overlook components that they consider unnecessary or that you have to transfer to you during a repair.[/quote]
'''Me:'''
[quote]The good news is that I just plugged the old display back in and the tablet was able to turn on after plugging it in. Even better, when I plugged the new screen back in, the tablet was able to turn on, but I can't explain why.
Thank you very much for your advice![/quote]