# Fundamentals - WP7607 Can't develop and test applications **URL:** \ **Category:** mangOH Green\ **Created:** [July 21, 2020, 12:39pm UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891 "2020-07-21T12:39:14Z")\ **Posts on this page:** 9\ **Page:** 3
**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\ **Post date:** [August 5, 2020, 9:51am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/41 "2020-08-05T09:51:07Z")
yes, you need to update the FW. you can use scp to transfer the .spk file to module /tmp folder, after that you can use “fwupdate download /tmp/xxx.spk” command to update the FW. BTW, you should use leaf to download swi-wp76\_4.7.0 which will have legato 20.04. ---
**Author:** ![tadera](https://avatars.discourse-cdn.com/v4/letter/t/f14d63/32.png) [@tadera](https://mangoh.discourse.group/u/tadera)\ **Post date:** [August 5, 2020, 10:06am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/42 "2020-08-05T10:06:46Z")
That’s the ressource I found to update the firmware: [https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-latest-release/](https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-latest-release/) I guess I can also go the Windows .exe route, right? Since I have a Telekom SIM I’ll probably have to download this file: _R13.1 (Generic — GCF)_ , right? What throws me of a bit is the fact that it says that _Generic GCF_ corresponds to the _Base Legato System 19.02.0_. This means I still won’t have Legato 20.04 running on the module or am I missing something here? As I’ve shown in a previous post, I already downloaded _swi-wp76\_4.7.0_. ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/d/dbaacd8d1d37da081ad3a9ff10d666d3fbb0d27c.png) ---
**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\ **Post date:** [August 5, 2020, 10:12am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/43 "2020-08-05T10:12:50Z")
That exe will be having legato 19.2 ---
**Author:** ![tadera](https://avatars.discourse-cdn.com/v4/letter/t/f14d63/32.png) [@tadera](https://mangoh.discourse.group/u/tadera)\ **Post date:** [August 5, 2020, 10:16am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/44 "2020-08-05T10:16:42Z")
Which will be enough to run a 20.04 app? ---
**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\ **Post date:** [August 5, 2020, 10:19am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/45 "2020-08-05T10:19:05Z")
No, I don’t think so, both version should be matched, ---
**Author:** ![tadera](https://avatars.discourse-cdn.com/v4/letter/t/f14d63/32.png) [@tadera](https://mangoh.discourse.group/u/tadera)\ **Post date:** [August 5, 2020, 10:20am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/46 "2020-08-05T10:20:55Z")
But you’re recommending updating the module to 19.2 anyway? How can I make both run the same version then? ---
**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\ **Post date:** [August 5, 2020, 10:26am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/47 "2020-08-05T10:26:42Z")
Two methods: You can compile the app by legato 19.2 Or you can upgrade your module to legato 20.04 ---
**Author:** ![tadera](https://avatars.discourse-cdn.com/v4/letter/t/f14d63/32.png) [@tadera](https://mangoh.discourse.group/u/tadera)\ **Post date:** [August 5, 2020, 10:28am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/48 "2020-08-05T10:28:40Z")
That’s the point I can’t seem to get higher than 19.2, can I? At least according to [https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-latest-release/](https://source.sierrawireless.com/resources/airprime/software/wp76xx/wp76xx-firmware-latest-release/) ---
**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\ **Post date:** [August 5, 2020, 10:32am UTC](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891/49 "2020-08-05T10:32:26Z")
No, official exe is on legato 19.2 [Previous page](https://mangoh.discourse.group/t/fundamentals-wp7607-cant-develop-and-test-applications/4891.md?page=2)