iPhone transfer Messages from iphone 5s to iphone 11-Pro?

[agingresearcher]

Hello,
I'd like to transfer Messages from iphone 5s to iphone 11-Pro,
I do not wish to run a full backup, and I do not wish to keep any messages on
icloud.
And I'd like to avoid third-party software installations.

Then, from the 4 options in the two-month-old article at

4 Methods to Transfer Messages from iPhone to iPhone [Step-by-step]

Do you wish to transfer messages from iPhone to iPhone, but can’t find a feasible solution? Read on as we have explored 4 different solutions to transfer messages.

mobiletrans.wondershare.com

[mobiletrans.wondershare.com]
only "Part 2" seems to be a good option;

Part 1: How to Transfer Messages from iPhone to iPhone without iCloud/iTunes
-> seems to require third-party software installation
Part 2: Transfer Messages from iPhone to iPhone using iCloud
-> see below
Part 3: Transfer Messages from iPhone to iPhone via iTunes
-> full backup only?!
Part 4: How to Transfer Messages from iPhone to iPhone without Computer
-> doesnt seem to work, as there does not seem to be a way to select messages
for transfer?!

However, according to

icloud message sync is so confusing.

The somewhat recent icloud message sync feature seems to be buggy and confusing. How come when I go to icloud settings and attempt to turn off messages it tells me "messages have not been fully downloaded to this iphone" every single time. Every Single Time. What does that exactly mean? Because...

forums.macrumors.com

it seems that messages are not downloaded in full; like Photos, they reside
on the icloud to be downloaded as needed; that seems to explain the
"messages have not been fully downloaded to this iphone" notification
via the icoud interface.
Any ways to resolve this?? Thanks a lot!!
(I investigated other hits of

🔎 messages have not been fully downloaded to this iphone disable and download messages - Google Search

www.google.com

but no obvious solution.)

Thanks in advance!
Georg

 

[carcarano]

Hi. I'm afraid I cannot help with this, because about a year ago I learned that you cannot sync data over different versions of iOS, and my iPhone 5s has iOS 12.4.7. currently running, and the iPhone 11 currently is running iOS 13.5.1. It would mean losing all of your data, and even a backup wouldn't work. I'm sorry for the inconvenience.