Therma Firmware

Firmware Update for ETI Manufactured Bluetooth LE Thermometers

Electronic Temperature Instruments Limited · uk.co.etiltd.etiblefirmware

Not rated yet 1K+ downloads v4.0.4 5.6 MB Android 10+ PEGI 3 · Everyone

Download APK 5.6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v4.0.4 (40004)
Updated: Aug 31, 2026 (1 month ago)
APK size: 5.6 MB
Requires: Android 10+ (API 29)
CPU support: Any (no native code)
Category: Food & Drink (app)
Listed since: Apr 17, 2021 (at least)
Permissions: 14 (3 sensitive)
Website: thermometer.co.uk
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Therma Firmware is an app by Electronic Temperature Instruments Limited in the Food & Drink category, listed since at least April 2021. It has no native code, so it runs on any Android processor.

Since version 2.0.4, the minimum Android version rose from 5.0 to 10. It asks for 14 permissions, 3 of them sensitive: precise location, Bluetooth connect and Bluetooth scan. Compared with version 2.0.4, it adds 2 new permissions: “Access adservices ad id” and “Access adservices attribution”. The app can read the advertising ID that ad and analytics services use.

What's new in v4.0.4

Adjusted for new Play Store rules

Description

From the listing uploaded by “appupdater”.

This app will check and upgrade the firmware within the list of thermometers below to the latest available version. Thermapen Blue TempTest Blue RayTemp Blue BlueTherm One LE ThermaQ Blue Updating the Firmware may resolve known connection issues with recent Samsung mobile devices. However a another Android device, that is not experiencing the issue, will be needed in order to perform the update. It is not normally necessary to do this unless you are experiencing issues with your Thermometer and have been advised to do so by your supplier.

Version history

2 versions are listed, going back to v2.0.4. Since v4.0.4 it requires Android 10+.

v4.0.4 LATEST Aug 31, 2026 5.6 MB TRUSTED v2.0.4 Dec 7, 2025 5.4 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 31, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Aug 31, 2026
Validated against Google Play Aug 31, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)57:00:0F:0E:8B:AF:C5:D0:AB:99:23:5D:47:68:50:C3:D1:DD:D9:A2
File MD5b4ad691ba601bbc3e59c8c64a013d062
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (14)

Therma Firmware requests 14 permissions, 3 of them sensitive.

Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Advertising ID com.google.android.gms.permission.AD_ID
Bluetooth android.permission.BLUETOOTH
Bluetooth admin android.permission.BLUETOOTH_ADMIN
Change network state android.permission.CHANGE_NETWORK_STATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) uk.co.etiltd.etiblefirmware.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Bluetooth android.hardware.bluetooth
Basic touch input android.hardware.faketouch
Location android.hardware.location
Portrait screen android.hardware.screen.portrait

Therma Firmware APK: questions and answers

Is there a version of Therma Firmware for older Android phones?

The current version needs Android 10 or later. Version 2.0.4 is the newest listed build that installs on Android 5.0 and later. Get version 2.0.4 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Therma Firmware APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is b4ad691ba601bbc3e59c8c64a013d062.