Okay, so, a lot of people seem not to understand how to apply the formula for calculation for the OSVarContentSize (I know, Math is ugly), therefore I decided to allocate 2 hours from my life and calculate and create a table for all devices. You no longer need to use the huge formula, just copy the value and paste it inside the BuildManifest.plist file inside the IPSW file. This is for iOS 10 BETA 1 CFW creation.
| OSVarContentSize | iDevice Compatible | Identifier | iOS Version Compatible |
| 4901 | iPhone 5,1 | iPhone 5 | iOS 10 Beta 1 |
| 5190 | iPhone 5,2 | iPhone 5 | iOS 10 Beta 1 |
| 4901 | iPhone 5,3 | iPhone 5C | iOS 10 Beta 1 |
| 4961 | iPhone 5,4 | iPhone 5C | iOS 10 Beta 1 |
| 4120 | iPhone 6,1 | iPhone 5S | iOS 10 Beta 1 |
| 4116 | iPhone 6,2 | iPhone 5S | iOS 10 Beta 1 |
| 5100 | iPhone 7,2 | iPhone 6 | iOS 10 Beta 1 |
| 5120 | iPhone 7,1 | iPhone 6Plus | iOS 10 Beta 1 |
| 5124 | iPhone 8,1 | iPhone 6S | iOS 10 Beta 1 |
| 5111 | iPhone 8,2 | iPhone 6S Plus | iOS 10 Beta 1 |
Please don't use these values for any other version than the one in the table.
