https://www.desidime.com/discussions/any-way-to-update-iphone-6-to-ios-13?page=1#post_9248178
Even if you were able to install, the phone will lag and will become slow
my iphone6 is in excellent working conditions , not able to load many apps now due to ios13 restriction .. apple officially doesnt support ios 13 in iphone6 ,, any way to get it forced install ?
Nope. There isn’t any such firmware for that model and even if one exists, it would require to be verified from apple’s server during installation.
Which regular daily usage apps your not able to use ?