[Magisk] JohnWo:
I got the logs with

"adb logcat | grep -i nfc"

This is the output of Magisk installation:

- Copying zip to temp directory
- Installing NFCScreenOff-v0.3.1-JohnWo.zip
- Device is system-as-root
Archive: /data/user/0/com.topjohnwu.magisk/cache/flash/install.zip
inflating: module.prop
****************
NFC Screen Off
****************
*******************
Powered by Magisk
*******************
Archive: /data/user/0/com.topjohnwu.magisk/cache/flash/install.zip
inflating: customize.sh
- Extracting module files
Archive: /data/user/0/com.topjohnwu.magisk/cache/flash/install.zip
inflating: customize.sh
inflating: module.prop
inflating: service.sh
creating: system/
inflating: system/placeholder
creating: bin/
inflating: bin/zip
inflating: bin/curl
-- Searching for NFC app in /system/app/ folder...
-- Nfc_st.apk found!
-- Device info --
APK_NAME=Nfc_st
MANUFACTURER=A-gold
MODEL=BV9500Plus
DEVICE=BV9500Plus
ROM=
-----------------
-- Searching for Nfc_st.apk backup...
-- Nfc_st_bak.apk not found. Creating backup of original Nfc_st.apk.
-- Searching for Nfc_st.odex backup...
-- Nfc_st_bak.odex not found. Creating backup of original Nfc_st.odex.
-- Searching for Nfc_st.vdex backup...
-- Nfc_st_bak.vdex not found. Creating backup of original Nfc_st.vdex.
-- Searching for custom Nfc_st.apk in extracted files...
-- Nfc_st_align.apk not found.
-- Zipping Nfc_st.apk and device's framework (/data/adb/modules_update/NFCScreenOff/bin/zip)
adding: .env (deflated 11%)
adding: Nfc_st.apk (deflated 51%)
adding: framework-res.apk (deflated 62%)
-- Uploading device's apks for modding (/system/bin/curl), it may take a while (9Mb)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed

0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
3 9790k 0 0 3 320k 0 480k 0:00:20 --:--:-- 0:00:20 479k
60 9790k 0 0 60 5952k 0 3607k 0:00:02 0:00:01 0:00:01 3605k
100 9790k 0 0 100 9790k 0 2943k 0:00:03 0:00:03 --:--:-- 2944k
100 9790k 0 0 100 9790k 0 2262k 0:00:04 0:00:04 --:--:-- 2263k
100 9790k 0 0 100 9790k 0 1837k 0:00:05 0:00:05 --:--:-- 1837k
100 9790k 0 0 100 9790k 0 1546k 0:00:06 0:00:06 --:--:-- 1672k
100 9790k 0 0 100 9790k 0 1335k 0:00:07 0:00:07 --:--:-- 675k
100 9790k 0 0 100 9790k 0 1175k 0:00:08 0:00:08 --:--:-- 0
100 9790k 0 0 100 9790k 0 1048k 0:00:09 0:00:09 --:--:-- 0
100 9790k 0 0 100 9790k 0 947k 0:00:10 0:00:10 --:--:-- 0
100 9790k 0 0 100 9790k 0 863k 0:00:11 0:00:11 --:--:-- 0
100 9790k 0 0 100 9790k 0 846k 0:00:11 0:00:11 --:--:-- 0
curl: (22) The requested URL returned error: 502
-- Classic modding failed, trying odex strategy
-- Adding whole framework folder and odex/vdex files to archive
adding: .env (deflated 9%)
adding: Nfc_st.apk (deflated 51%)
adding: Nfc_st.odex (deflated 68%)
adding: Nfc_st.vdex (deflated 57%)
adding: arm64/ (stored 0%)
adding: arm64/boot-bouncycastle.vdex (deflated 57%)
adding: arm64/boot-mediatek-telephony-base.vdex (deflated 60%)
adding: arm64/boot-mediatek-framework.oat (deflated 71%)
adding: arm64/boot-conscrypt.art.rel (deflated 87%)
adding: arm64/boot-framework.art.rel (deflated 91%)
adding: arm64/boot-android.hidl.base-V1.0-java.vdex (deflated 55%)
adding: arm64/boot-framework-oahl-backward-compatibility.vdex (deflated 44%)
adding: arm64/boot.art.rel (deflated 90%)
adding: arm64/boot-mediatek-telecom-common.art (deflated 86%)
adding: arm64/boot-android.hidl.manager-V1.0-java.art (deflated 86%)
adding: arm64/boot-ims-common.oat (deflated 68%)
adding: arm64/boot-telephony-common.vdex (deflated 61%)
adding: arm64/boot-ims-common.art (deflated 75%)
adding: arm64/boot-framework-oahl-backward-compatibility.oat (deflated 92%)
adding: arm64/boot-bouncycastle.art.rel (deflated 83%)
adding: arm64/boot-mediatek-common.art.rel (deflated 44%)
adding: arm64/boot-framework-oahl-backward-compatibility.art.rel (deflated 24%)
adding: arm64/boot-mediatek-framework.art (deflated 75%)
adding: arm64/boot-mediatek-framework.vdex (deflated 64%)
adding: arm64/boot-conscrypt.vdex (deflated 55%)
adding: arm64/boot-mediatek-telephony-base.art.rel (deflated 73%)
adding: arm64/boot-core-libart.oat (deflated 55%)
adding: arm64/boot-android.hidl.base-V1.0-java.art (deflated 83%)
adding: arm64/boot-telephony-common.oat (deflated 60%)
adding: arm64/boot-android.hidl.manager-V1.0-java.oat (deflated 82%)
adding: arm64/boot-android.test.base.art (deflated 86%)
adding: arm64/boot-ext.oat (deflated 62%)
adding: arm64/boot-ims-common.vdex (deflated 59%)
adding: arm64/boot-mediatek-common.oat (deflated 76%)
adding: arm64/boot-telephony-common.art (deflated 73%)
adding: arm64/boot-mediatek-framework.art.rel (deflated 73%)
adding: arm64/boot-mediatek-telephony-base.oat (deflated 69%)
adding: arm64/boot-ext.art.rel (deflated 78%)
adding: arm64/boot-mediatek-telephony-common.vdex (deflated 70%)
adding: arm64/boot-voip-common.vdex (deflated 54%)
adding: arm64/boot-framework-oahl-backward-compatibility.art (deflated 96%)
adding: arm64/boot-android.hidl.manager-V1.0-java.art.rel (deflated 71%)
adding: arm64/boot-android.test.base.oat (deflated 91%)
adding: arm64/boot-mediatek-telecom-common.oat (deflated 91%)
adding: arm64/boot-framework.oat (deflated 60%)
adding: arm64/boot-mediatek-ims-common.vdex (deflated 56%)
adding: arm64/boot-mediatek-telecom-common.art.rel (deflated 43%)
adding: arm64/boot-conscrypt.oat (deflated 62%)
adding: arm64/boot-framework.vdex (deflated 58%)
adding: arm64/boot-apache-xml.vdex (deflated 54%)
adding: arm64/boot-conscrypt.art (deflated 75%)
adding: arm64/boot-mediatek-telephony-common.oat (deflated 60%)
adding: arm64/boot-okhttp.vdex (deflated 52%)
adding: arm64/boot-core-libart.vdex (deflated 51%)
adding: arm64/boot-apache-xml.oat (deflated 60%)
adding: arm64/boot-mediatek-ims-common.oat (deflated 82%)
adding: arm64/boot-telephony-common.art.rel (deflated 88%)
adding: arm64/boot-framework.art (deflated 75%)
adding: arm64/boot-mediatek-ims-common.art.rel (deflated 56%)
adding: arm64/boot-mediatek-telephony-common.art (deflated 66%)
adding: arm64/boot-android.hidl.manager-V1.0-java.vdex (deflated 59%)
adding: arm64/boot-okhttp.art.rel (deflated 87%)
adding: arm64/boot-okhttp.art (deflated 74%)
adding: arm64/boot-apache-xml.art.rel (deflated 78%)
adding: arm64/boot-android.hidl.base-V1.0-java.oat (deflated 92%)
adding: arm64/boot-voip-common.art.rel (deflated 69%)
adding: arm64/boot.vdex (deflated 54%)
adding: arm64/boot-android.test.base.vdex (deflated 52%)
adding: arm64/boot-bouncycastle.art (deflated 71%)
adding: arm64/boot-mediatek-telecom-common.vdex (deflated 60%)
adding: arm64/boot-ext.vdex (deflated 57%)
adding: arm64/boot-ims-common.art.rel (deflated 83%)
adding: arm64/boot-apache-xml.art (deflated 71%)
adding: arm64/boot-bouncycastle.oat (deflated 59%)
adding: arm64/boot.art (deflated 74%)
adding: arm64/boot-mediatek-telephony-common.art.rel (deflated 66%)
adding: arm64/boot-okhttp.oat (deflated 57%)
adding: arm64/boot-mediatek-common.art (deflated 88%)
adding: arm64/boot-ext.art (deflated 70%)
adding: arm64/boot-mediatek-ims-common.art (deflated 80%)
adding: arm64/boot-mediatek-common.vdex (deflated 65%)
adding: arm64/boot.oat (deflated 57%)
adding: arm64/boot-android.hidl.base-V1.0-java.art.rel (deflated 67%)
adding: arm64/boot-core-libart.art (deflated 72%)
adding: arm64/boot-voip-common.art (deflated 80%)
adding: arm64/boot-core-libart.art.rel (deflated 87%)
adding: arm64/boot-android.test.base.art.rel (deflated 56%)
adding: arm64/boot-voip-common.oat (deflated 82%)
adding: arm64/boot-mediatek-telephony-base.art (deflated 74%)
/data/data/com.topjohnwu.magisk/cache/flash
-- Uploading archive for odex modding (/system/bin/curl), it may take a while (33Mb)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed

0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
0 33.7M 0 0 0 65535 0 217k 0:02:38 --:--:-- 0:02:38 216k
14 33.7M 0 0 14 4864k 0 3755k 0:00:09 0:00:01 0:00:08 3755k
32 33.7M 0 0 32 10.9M 0 4878k 0:00:07 0:00:02 0:00:05 4878k
50 33.7M 0 0 50 17.1M 0 5294k 0:00:06 0:00:03 0:00:03 5293k
69 33.7M 0 0 69 23.3M 0 5572k 0:00:06 0:00:04 0:00:02 5571k
87 33.7M 0 0 87 29.6M 0 5709k 0:00:06 0:00:05 0:00:01 6031k
100 33.7M 0 0 100 33.7M 0 4910k 0:00:07 0:00:07 --:--:-- 5171k
100 33.7M 0 0 100 33.7M 0 4297k 0:00:08 0:00:08 --:--:-- 4065k
100 33.7M 0 0 100 33.7M 0 3821k 0:00:09 0:00:09 --:--:-- 2969k
100 33.7M 0 0 100 33.7M 0 3440k 0:00:10 0:00:10 --:--:-- 1846k
100 33.7M 0 0 100 33.7M 0 3128k 0:00:11 0:00:11 --:--:-- 734k
100 33.7M 0 0 100 33.7M 0 2868k 0:00:12 0:00:12 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 2647k 0:00:13 0:00:13 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 2459k 0:00:14 0:00:14 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 2295k 0:00:15 0:00:15 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 2152k 0:00:16 0:00:16 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 2025k 0:00:17 0:00:17 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 1913k 0:00:18 0:00:18 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 1812k 0:00:19 0:00:19 --:--:-- 0
100 33.7M 0 0 100 33.7M 0 1722k 0:00:20 0:00:20 --:--:-- 0
96 35.0M 0 0 100 33.7M 0 1644k 0:00:21 0:00:21 --:--:-- 0
97 35.0M 29 382k 100 33.7M 18339 1619k 0:01:13 0:00:21 0:00:52 91342
100 35.0M 100 1314k 100 33.7M 62300 1598k 0:00:21 0:00:21 --:--:-- 369k
-- Downloaded custom Nfc_st.apk from lapwat's servers
- Replace target: /system/app/Nfc_st
- Done