Hi Daniel .. this is the reply from David.

   I am hoping you may be able to add to this.
   Hi Stephen,
   Thank you very much for posting the problem and forwarding Daniels
   response.
   Initially this looked promising as I was able to see all my chats on my
   new phone - whoop, whoop!!!! However, when I opened the chats on the
   new phone none of the photo/video files were present. Furthermore, none
   of the media files were listed when I viewed the chat details through
   Settings. When I clicked on the blank media file placard holder within
   the chats, the file downloaded but this isn’t a long term solution. I’d
   like to have all the files on the device and available for viewing
   offline.
   The other concern is what happens when I transfer my WhatsApp account
   to my new phone. By default, it now becomes the primary device and is
   therefore no longer “linked” to my old phone.
   Any further insights Daniel can offer would be very much appreciated.
   Thank you.
   Regards,
   Stephen Chape
   Mac by choice
   Windows because my employer knew no better

   On 20 Oct 2025, at 9:34 am, Daniel Kerr via WAMUG
   <[email protected]> wrote:

   Hi Stephen,
   If he just signed in to WhatsApp on the new iPhone - then goes to “Link
   New Device” - it should automatically sync all the chats from the old
   phone - without needing to “transfer it”.
   That’s the way I’ve done it for other clients. Just sign in to WhatsApp
   on the new iPhone and go through the steps to sign in again - and all
   their chats appeared automatically.
   Didn’t need to “back up” or do anything. That all worked.
   So I’d recommend perhaps trying that first and see how it goes.
   You can find the steps to it here -
   https://faq.whatsapp.com/1317564962315842/?cms_platform=iphone&helpref=
   platform_switcher
   • Go to Settings (the gear icon).
   • Tap Linked devices.
   • Tap Link device.
   • You may be prompted to verify your identity using your phone's
   passcode or Face ID/Touch ID.
   • Scan the QR code that is displayed on the new iPhone's screen.
   Otherwise some steps here also -
   https://faq.whatsapp.com/209942271778103/?cms_platform=iphone&helpref=p
   latform_switcher
   Other thing that could be causing an issue could be things like -
   1. Some “corrupted” chat or data is blocking it.
   2. If it’s a very large “chat history” and data, or photos (lots of
   photos).
   3. Corruption of an image or attachment with in.
   4. Privacy settings are set correctly on both iPhones.
   5. Encryption of a particular chat is “blocking” it.
   6. Not enough storage on either device - even though it’s going to
   iCloud - the old iPhone would still need enough storage on the iPhone
   to “save” it into iCloud Drive so it can be accessed on the new phone.
   So if the old phone has limited storage, it could be “stopping it”.
   But they would be some of the things I would try and work through
   first.
   Kind regards
   Daniel
    Sent from my iPhone 16 Pro 
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   MacWizardry
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     On 19 Oct 2025, at 10:51 pm, STEPHEN CHAPE via WAMUG
     <[email protected]> wrote:
      My son bought a new iPhone 16 a few months ago.
      He has been able to transfer everything from his old iPhone except
      WhatsApp chats.
      Even his local Apple store could not help him.
      When transferring from phone to phone via WiFi it stops at 37%
      consistently.
      When uploading to iCloud (200GB capacity) the phone compresses the
      chats first.
      And stores the compressed folder on his old phone before uploading.
      Problem is that the old phone does not have the capacity to store
     the
      folder.
      Does anyone have another idea that might work please ?
      Regards,
      Stephen Chape
      Mac by choice
      Windows because my employer knew no better
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