WiFi and Bluetooth Connectivity Issues with the Bluetti App

Product Discussion BLUETTI APP
1

Hello everyone, and @BLUETTI @BLUETTI_CARE,


I’m having trouble connecting and maintaining a stable WiFi and/or Bluetooth connection with my Bluetti Elite 30 V2 through the Bluetti app.


When I open the app, the Bluetti Elite 30 V2 appears (though sometimes I only see a blank screen with the Bluetti logo). However, when I attempt to connect, I receive the message: “Server connection failed. Please try again later.” Afterward, I’m given the option to connect via Bluetooth.


When I try connecting via Bluetooth, I get the following message: “EL30V2SERIALNUM not found. Please ensure Bluetooth is enabled on both your phone and the BLUETTI device, and that your phone is close to the device.”


Both Bluetooth and WiFi are enabled on my Bluetti Elite 30 V2, and I have confirmed that the Bluetti app’s permissions are set correctly.


Occasionally, I manage to connect via the Cloud, but the connection is very unstable. When I power off the Bluetti Elite 30 V2, wait for a few minutes, and then turn it back on, Bluetooth connects briefly but remains unstable. While I can initially connect, the connection often drops when I try to adjust settings. Sometimes, it is even impossible to access certain options, let alone make any changes.


Has anyone else experienced this issue? Is there a potential solution or update that could resolve this?


Kind regards,


Jason


Firmware (click to expand)

Module Status Installed
IoT Up-to-date v8024.12
ARM Up-to-date v2203.11
DSP Up-to-date v2202.11
BMS Up-to-date v1087.08

Screenshots (click to expand)

screenshot_01_blank_dashboard
screenshot_01_blank_dashboard1320×2868 106 KB

screenshot_02_homepage
screenshot_02_homepage1320×2868 151 KB

screenshot_03_error_can_not_connect_wifi
screenshot_03_error_can_not_connect_wifi1320×2868 147 KB

screenshot_04_error_can_not_connect_bluetooth
screenshot_04_error_can_not_connect_bluetooth1320×2868 162 KB

screenshot_05_can_not_open_options
screenshot_05_can_not_open_options1320×2868 199 KB

Versions for EL30V2

screenshot_06_firmware
screenshot_06_firmware1320×2868 142 KB

3 Likes
2

Hello everyone, and @BLUETTI @BLUETTI_CARE,


Update: I uninstalled and reinstalled the Bluetti app (v3.0.6). After that, I was no longer able to log in. After multiple attempts, I was finally able to log in again.
I am also unable to connect to my Bluetti Elite 30 V2 in Offline Mode.


I have tested several devices so far, including:

  • Apple iPad Air (iOS v26.3.2)
  • Apple iPhone 12 mini (iOS v18.7.5)
  • Apple iPhone 17 Pro Max (iOS v26.3.2)

Unfortunately, I do not have an Android device available to test this further.


Screenshots (click to expand)

screenshote_01_bluetti_app_v3.0.6
screenshote_01_bluetti_app_v3.0.61320×2868 400 KB

screenshote_02_bluetti_app_offline_mode
screenshote_02_bluetti_app_offline_mode1320×2868 134 KB

1 Like
3

Hello,
Thank you for your patience! Please refer to the following steps to resolve the connection issue:

  1. Ensure that the WiFi frequency band is set to 2.4G.
  2. Confirm that the WiFi password is correct, as the app may display “WiFi saved” even if the wrong password is entered, but it won’t connect.
  3. Try turning off and then on the device’s display as well as the Bluetooth and WiFi on your phone. Make sure the phone’s location services are enabled.
  4. Ensure that the device is within the range of the WiFi signal source. If the device is too far from the router, poor signal reception may lead to connection failure. You can check the network signal strength (Network Rssi) in the app under “About device.” If the signal strength is weak, please move the device closer to the router.
  5. If you still cannot connect, please log out of your account and try using the ofinemode Bluetooth direct connection to see if you can connect to the device. If you can connect, it may be a phone signal issue since binding the device’s Bluetooth after logging in also requires a good mobile network signal.
    I hope this information helps! If you have any further questions, please feel free to contact us.
4

Hi @BLUETTI @BLUETTI_CARE,


I have come to the conclusion that my issue consists of two parts:

  1. Being unable to connect via the cloud in the Bluetti app.
  2. Firmware issues with the Bluetti Elite 30 V2 Bluetooth controller .

First, I would like to answer your questions: this is not a Wi-Fi issue. The Wi-Fi is correctly connected to my home network (see screenshots). The suggestions you provided were ones I had already considered and ruled out. If you had carefully reviewed my original forum post and my first reply underneath it, including the screenshots, you would have seen this. I must admit, however, that I initially forgot to include a screenshot of the Wi-Fi connection. I have now added it to this reply.

1. Cloud connection issue

It appears that changes have been made on Bluetti’s side to the DNS records, and that these records contradict each other.


When I open the Bluetti app and wait approximately 45 seconds, I can select my device and view the dashboard of my Bluetti Elite 30 V2. However, when I try to open Energy Statistics, for example, to see how much solar energy was generated that day, I first see a spinning Bluetti logo. Then I receive the message: “Communication timed out, please try again.” (see screenshots).


This happens with all functions I attempt to use via the cloud in the Bluetti app; the same message appears each time: “Communication timed out, please try again.”

2. Bluetooth firmware issue

In addition, it appears that the firmware of the Bluetooth controller crashes after some time on the Bluetti Elite 30 V2.


When I completely power off the device, wait 2 to 5 minutes, and then turn it back on, the Bluetooth connection temporarily works again. After some time, however, the connection fails once more, and it is no longer possible to connect to the Bluetti Elite 30 V2 via Bluetooth.


When I use a Bluetooth analyzer, I can see that at that moment the Bluetti Elite 30 V2 is not broadcasting any Bluetooth signal at all, even though both Bluetooth and Wi-Fi are enabled in the device settings.


Screenshots (click to expand)

screenshot_01__bluetti_app_network_settings
screenshot_01__bluetti_app_network_settings1320×2868 147 KB

screenshot_02_unifi_app_energy_statisics_loading.png
screenshot_02_unifi_app_energy_statisics_loading.png1320×2868 232 KB

screenshot_03_unifi_app_energy_statisics_error.png
screenshot_03_unifi_app_energy_statisics_error.png1320×2868 254 KB

1 Like
5

Hello,

Regarding your issue, I have registered an upgrade for the IoT firmware for you. Please be patient while we push the firmware update.

Thank you for your understanding!

1 Like
6

Hi @BLUETTI @BLUETTI_CARE,


Thank you for your response. I have been waiting for a few days, but I still haven’t received the IoT firmware upgrade for my Bluetti Elite 30 V2. Could you let me know when I can expect it?

1 Like
7

Hello,
To register the firmware upgrade, please provide your device’s serial number (SN). This will allow us to process your upgrade request. Thank you for your cooperation!

8

Hi @BLUETTI,


I have sent the serial number (SN) to you via DM.