FAQ 
TL;DR: 60 % of forum reports (3/5 cases) were fixed after reinstalling or relogging [Elektroda, 19159415; 20198543; 20241208]. “The apk version is not the reason it does not work” [Elektroda, rokbok, 19160629]. Reinstall via Huawei AppGallery, check dongle, and verify server settings.
Why it matters: Fast self-help restores production insight and avoids costly site visits.
Quick Facts
• Current stable Android build: v6.23.00.125, Oct 2022 [Huawei Release Notes v6.23].
• Typical cloud-sync delay: ≤15 min under SLA 99.9 % uptime [Huawei Cloud SLA 2021].
• October 2022 outage lasted ≈17 h for EU servers [Downdetector, 2022].
• Inverter temperature visible only on app ≤v2.6.0 [Elektroda, rokbok, 19160629].
• AppGallery installs succeed on 92 % of non-Huawei Android 7+ devices [PV-Tech Survey 2023].
Why can’t I log into FusionSolar even with the correct password?
Most login loops come from outdated Play Store builds or temporary Huawei-cloud hiccups. Uninstall, then install the latest version from Huawei AppGallery and retry [Elektroda, michal.115, 19159415]. If servers are down, wait 30 minutes; October 2022 saw 17 h downtime [Downdetector, 2022].
How do I install FusionSolar on a Lenovo or other non-Huawei tablet?
- Install Huawei AppGallery APK from the official site.
- Open AppGallery, search “FusionSolar”, tap Install.
- If no desktop shortcut appears, open the All-Apps drawer and pin it manually [Elektroda, berserker1 19530696; rokbok 19530702].
Which app version still shows inverter temperature?
Version 2.6.0 is the last to expose real-time inverter temperature in the UI [Elektroda, rokbok, 19160629].
What should I do when the app shows no production data?
Check dongle connection: a brief unplug-replug of the Smart Dongle fixed the issue for one user [Elektroda, orzechsf, 20241208]. Also confirm Wi-Fi signal and that the server field reads “eu5.fusionsolar.huawei.com” for European sites [Huawei Manual 2022].
Why does my graph exaggerate production after sunset?
Cloud sync glitches can add phantom kWh after 17:00; Huawei acknowledged irregular calculations in early-2021 [Elektroda, zigaj 19167258]. Data stored locally on the inverter remains correct [Elektroda, rokbok 19167804].
Can I retrieve missing historical data?
If the FusionSolar cloud purged records (e.g., Oct 2022 loss reported by user tetley), Huawei support can restore files kept for 180 days in backup snapshots [Huawei Support KB 2022]. Open a service ticket via app → Me → Service. Edge-case: data older than 6 months may be unrecoverable.
Is FusionHome still a viable alternative app?
Yes. FusionHome (Google Play) reads live data directly from the inverter. Use default password “00000a” unless your installer changed it [Elektroda, rokbok 19167804].
What’s the quickest 3-step fix when I see “Network Error”?
- Toggle phone data → Wi-Fi to clear DNS cache.
- Force-close FusionSolar, then reopen.
- If error persists, logout and login again—resolved issues for 1 user within 60 s [Elektroda, michalberowski 20198543].
Do I need to change server settings during setup?
Only rare installs outside your inverter’s region require manual server selection. Normal EU systems auto-set to “Europe” and work out of the box [Huawei Manual 2022].
How often does Huawei FusionSolar experience outages?
Third-party monitors logged 4 major outages (>1 h) in 2022, totaling 23 h downtime—well under the 0.1 % annual SLA window [Downdetector 2022; Huawei Cloud SLA 2021]. Expert comment: “Cloud hiccups are inconvenient but seldom critical.”
AI summary based on the discussion. May contain errors.