Bill Letter
v6.8.1 · 16.3 MB · code 168
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File information
UpdatedFeb 5, 2026
PublishedMay 1, 2021
Packagecom.skt.smartbill
Versionv6.8.1 (168)
Size16.3 MB
MD50f9c4ffa0e42d7c726450670999e9d19
Min SDK24
ABIsarmeabi, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA156:FD:E5:17:28:11:33:94:9A:82:B1:E8:93:BC:3E:C3:EA:45:04:7A
SignerCN=SK Telecom, OU=Customer Billing, O=SK Telecom, L=Seoul, ST=Seoul
Total downloads10,000,000
This version10,000,000
DeveloperSKTelecom
Age ratingEveryone
What's new in v6.8.1
- 기타 사용성 개선
Security scan
TRUSTED
- Developer signature verified 2026-02-05
- Signature SHA1 56:FD:E5:17:28:11:33:94:9A:82:B1:E8:93:BC:3E:C3:EA:45:04:7A
- File MD5 0f9c4ffa0e42d7c726450670999e9d19
How to install Bill Letter v6.8.1 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 16.3 MB of free storage.
- Grab com.skt.smartbill_168.apk — hit the Download button above (16.3 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 0f9c4ffa0e42d7c7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.skt.smartbill_168.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 CN=SK Telecom, OU=Customer Billing, O=SK Telecom, L=Seoul, ST=Seoul. 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 Bill Letter — tap Open on the install screen, or find the Bill Letter icon in your app drawer (this build targets armeabi/armeabi-v7a/arm64-v8a devices).
Common install errors for Bill Letter
- "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 7.0 Nougat 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 armeabi/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.