diff --git a/CHANGELOG.md b/CHANGELOG.md
index af3744ae..05d02675 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,9 +9,11 @@
 
 ### Fixed
 - Fixed first tour item not shown if settings is not open ([support#823]).
-- Fixed selected activity tab not controlled independently per window ([support#807]);
-- Fixed selected documentation visibility not controlled independently per window ([support#807]);
+- Fixed selected activity tab not controlled independently per window ([support#807]).
+- Fixed selected documentation visibility not controlled independently per window ([support#807]).
+- Fixed slow firmware flash on Android ([support#438]).
 
+[support#438]: https://github.com/pybricks/support/issues/438
 [support#778]: https://github.com/pybricks/support/issues/778
 [support#807]: https://github.com/pybricks/support/issues/807
 [support#823]: https://github.com/pybricks/support/issues/823
diff --git a/src/firmware/sagas.ts b/src/firmware/sagas.ts
index 51ffbcc1..214bfb4f 100644
--- a/src/firmware/sagas.ts
+++ b/src/firmware/sagas.ts
@@ -63,7 +63,6 @@ import { RootState } from '../reducers';
 import { LegoUsbProductId, legoUsbVendorId } from '../usb';
 import { defined, ensureError, hex, maybe } from '../utils';
 import { crc32, fmod, sumComplement32 } from '../utils/math';
-import { isAndroid } from '../utils/os';
 import {
     FailToFinishReasonType,
     HubError,
@@ -485,9 +484,8 @@ function* handleFlashFirmware(action: ReturnType<typeof flashFirmware>): Generat
             yield* disconnectAndCancel();
         }
 
-        // 14 is "safe" size for all hubs and Android
-        const maxDataSize =
-            (!isAndroid() && MaxProgramFlashSize.get(info.hubType)) || 14;
+        // 14 is "safe" size for all hubs
+        const maxDataSize = MaxProgramFlashSize.get(info.hubType) || 14;
 
         let runningChecksum = 0xff;