# All local nodes not recognised after emonpi firmware update

**URL:** <https://community.openenergymonitor.org/t/all-local-nodes-not-recognised-after-emonpi-firmware-update/8373>\
**Category:** emonPi\
**Tags:** emonpi\
**Created:** [28 August 2018 08:32 UTC](https://community.openenergymonitor.org/t/all-local-nodes-not-recognised-after-emonpi-firmware-update/8373 "2018-08-28T08:32:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![andrewhf01](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/a/858c86/32.png) [@andrewhf01](https://community.openenergymonitor.org/u/andrewhf01)\
**Post date:** [28 August 2018 08:32 UTC](https://community.openenergymonitor.org/t/all-local-nodes-not-recognised-after-emonpi-firmware-update/8373/1 "2018-08-28T08:32:39Z")

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Finally got round to updating emonpi because I was needing to reboot the system as the feeds stopped logging, similar to those mentioned in [Reboot Required Every 20 Days Or So To Restore Logging](https://community.openenergymonitor.org/t/reboot-required-every-20-days-or-so-to-restore-logging/7151).  
I updated the system using the “emonpi update” in local emoncms administration. This worked however,  
I note two things/ issues after this update, one significant and one not so significant:

- not so significant issue - the feeds page in the local emoncms just displayed the rotating sun wheel after the update. After using different browsers this was identified as a browser issue, did not work in Safaris Technology Preview but did in Safari and Firefox (which is strange because they all use Mozilla engines).

- significant issue - the update must have also updated the firmware on the emonpi because the voltage calibration changed back to the original value (voltage readings were incorrect when graphed).  
I therefore did a git pull of the latest emonpi to my emonpi, updated the ‘float Vcal’ value in the src.ino and then did a firmware update using [Part 1/3: PlatformIO open-source embedded development ecosystem](https://community.openenergymonitor.org/t/platformio-compile-upload-firmware-blog-post-1-3/718), which worked fine except that all my local nodes (two emonTx and eight emonTh) stopped logging. I only had the emonpi node and two emonhub nodes (BMW i3 and SMA) logging. Fortunately I had an old git pull copy of the emonpi firmware, which then used to do a firmware update on the emonpi that corrected the problem.

By using the older firmware git pull and updating have I negated the original issue of logging stopping after 20 or so days? Or, have done something wrong while updating git pull and firmware update?