Mi MCS
v3.3.1 · 33.8 MB · code 35
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File information
UpdatedJan 16, 2026
PublishedDec 31, 2020
Packagepr.com.mcs.android
Versionv3.3.1 (35)
Size33.8 MB
MD5b4bed76458e42eaeaae6d103a00c034d
Min SDK21
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA1D4:20:C1:91:E9:29:40:02:DB:54:04:73:A0:2C:B0:78:BA:56:87:42
SignerO=Medical Card System, L=San Juan, ST=Puerto Rico
Total downloads100,000
This version100,000
DeveloperMCS Healthcare Holdings LLC
Age ratingEveryone
What's new in v3.3.1
This update to Mi MCS offers a number of bug fixes, as well as a number of usability improvements.
Security scan
TRUSTED
- Developer signature verified 2026-01-16
- Signature SHA1 D4:20:C1:91:E9:29:40:02:DB:54:04:73:A0:2C:B0:78:BA:56:87:42
- File MD5 b4bed76458e42eaeaae6d103a00c034d
How to install Mi MCS v3.3.1 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 33.8 MB of free storage.
- Grab pr.com.mcs.android_35.apk — hit the Download button above (33.8 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches b4bed76458e42eae…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find pr.com.mcs.android_35.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read O=Medical Card System, L=San Juan, ST=Puerto Rico. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Mi MCS — tap Open on the install screen, or find the Mi MCS icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Mi MCS
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 5.0 Lollipop or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships arm64-v8a native code. Devices with a different CPU will reject it.