sideload

or side-load

[sahyd-lohd]Computers.
verb (used without object)
  1. to transfer software, data, etc., from one local system or device to another, typically from one's computer to a mobile device.
verb (used with object)
  1. to transfer (software, data, etc.) by this process: It'll take two more minutes to sideload my podcasts to my phone.

Origin of sideload

1995–2000; in the sense ‘off to the side’, i.e., not over the Internet; patterned after upload and download
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018