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New SYNC version is Available
- Thread starter Dale5403
- Start date
Not that anyone cares but as a point of interest, those last 5 digits, as in the example 3.4.22200 stands for the build of 2022 on the 220th day. Interestingly there are 2 builds after the 22200, there are builds 22210 and 22220. Makes you wonder why there are 3 builds, in a 20-day period. I recently installed version 3.4.22210 in my F150.
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I can guess what they signify, but they are hexadecimal values; a base 16 number system rather than a base 10 (decimal) system you're used to seeing. In "Hex", each two character pair represents an 8-bit integer from 0-255. Each character represents a "nibble"- a 4-bit value from 0-15, or 0-1-2-3-4-5-6-7-8-9-A-B-C-D-E-F. Where A=10 and F=15. You can compute the value of B4 as 11*16+4=180. 10 would be 1*16+0=16. 1F would be 1*16+15=31. Etc. These might be checksums to assure the right code was downloaded for 6 updates.
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I should probably add an answer as to "what the f... is a checksum?". If you're overwriting memory, a checksum is a number that helps to verify the correct information was written to memory. The simplest algorithm to use is to add up all the bytes (2 character hex values) that were written. Then we perform modulo integer division by 256 (hex is 00-FF which equals 256 unique decimal values). The remainder will be a number between 0 and 255 decimal or 00-FF in hex. Which simply means that if we expect a certain checksum and it's off, we only have a chance of 1-256 of being wrong. So a checksum is a mathematical verification that the memory was overwritten correctly. It also serves as a "signature"- so a tech could verify that all the updates for a given module are present.
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So I just downloaded it to a thumb drive and followed the instructions from online a and it only took about 18 min and it said it was complete and i could remove the thumb drive. it did write the XML file to the drive that I then uploaded to ford through the website. It still says I have a SYNC update available but I confirmed in the car I have to new build number, I think it will just take time for Ford to update records after receiving my XML update file.
I will check again for map update after it updates and says I'm on the newest SYNC software because it says you have to be on the newest SYNC to do a map update.
Side question: Does anybody know what changed from the previous version? I have been searching the My Ford site and google trying to find a change long with no success.
I will check again for map update after it updates and says I'm on the newest SYNC software because it says you have to be on the newest SYNC to do a map update.
Side question: Does anybody know what changed from the previous version? I have been searching the My Ford site and google trying to find a change long with no success.
