Differences

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--- phones:kyocera_digno_keitai_4:start [2026/03/28 22:25] – added note on batteries phobos
+++ phones:kyocera_digno_keitai_4:start [2026/06/03 18:55] (current) – typo phobos
@@ Line 3: / Line 3: @@
 The Kyocera DIGNO Keitai 4 was released September 30th, 2022. It is the successor to the [[..:kyocera_digno_keitai_3:]]. The main differences in the newer model are a more powerful CPU, Android 10, the ability to  [[rooting_the_kyocera_digno_keitai_4#rooting|root]] the device, and the lack of a flashlight.
-The DIGNO 4 line is made up of the A202KC, A203KC, A204KC, KY-42C, and KY-43C. "A20XKC" will be used to collectively reference the A202KC, A203KC, and A204KC, and "KY-4XC" will be used for the KY-42C and KY-43C.  Kyocera also makes the [[..:kyocera_ky-41c|KY-41C]], a touchscreen smartphone that shares multiple specs with the DIGNO 4.
+The DIGNO 4 line is made up of the A202KC, A203KC, A204KC, KY-42C, and KY-43C. "A20XKC" will be used to collectively reference the A202KC, A203KC, and A204KC, and "KY-4XC" will be used for the KY-42C and KY-43C.  Kyocera also makes the [[..:kyocera_kids_keitai|]], a touchscreen smartphone that shares multiple specs with the DIGNO 4.
-===== Specs =====
+The A20XKC lineup is marketed by [[wp>SoftBank]] and their subsidiary [[wp>ymobile|Y!mobile]], and the KY-4XC lineup is marketed by [[wp>NTT Docomo]].
-{{template>Main|article=Kyocera DIGNO Keitai 4 hardware}}
+===== Specs =====
 ^  Phone  ^  A202KC[(https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-keitai4/spec.html)]  ^  A203KC[(https://www.ymobile.jp/lineup/digno4/?tabid=lineup-detail&wovn=en)]  ^  A204KC[(https://www.softbank.jp/biz/services/mobile/lineup/keitai/digno-keitai4-for-biz/)]  ^  KY-42C[(https://www.docomo.ne.jp/product/ky42c/spec.html)]  ^  KY-43C[(https://www.kyocera.co.jp/prdct/telecom/office/phone/lineup/feature-phone/ky-43c/)]  ^
@@ Line 15: / Line 15: @@
 ^  External storage  |  microSDHC officially supporting up to 32GB, unofficially tested to 400GB.   |||||
 ^  Battery  |  1500mAh (removable)  |||||
-^  Battery model  |  KYBEZ1[(phobos)]  | | |  KY01[(phobos)]  |
+^  Battery model  |  KYBEZ1[(phobos)]  |  KYBFJ1[(https://auctions.yahoo.co.jp/jp/auction/m1126309282)]  | |  KY01[(https://www.docomo.ne.jp/english/binary/pdf/support/trouble/manual/download/KY-42C_E_syousai.pdf)]  |  KY01[(https://support.ntt.com/upload/content/docomo/pdf/KY-43C_E1_syousai.pdf)]  |
-^  Primary display  |  3.4in TFT FWVGA  |||||
+^  Primary display  |  3.4” TFT FWVGA  |||||
-^  External display  |  0.9in OLED  |||||
+^  External display  |  0.9” OLED  |||||
 ^  Camera  |  8MP  ||  None  |  8MP  |  None  |
 ^  Operating system  |  Android 10 (Go edition)  |||||
 ^  Durability ratings  |  IP55/IP58, MIL-STD-810H  |||||
-^  Dimensions  |  51 x 112 x 17.9mm (when folded)  |||||
+^  Dimensions  |  51 x 112 x 17.9mm  |||||
-^  Release date  |    |   |  September 16th, 2022  |  March 10, 2023  |  April 17, 2023  |
+^  SIM  |  Nano  |||||
+^  Languages  |      Japanese, English       |||||
+^  Release date  |  September 30, 2022[(https://www.softbank.jp/mobile/products/keitai/digno-keitai4/)]  |  November 1, 2022[(https://www.ymobile.jp/lineup/other/digno4/)]   |  September 16th, 2022  |  March 10, 2023  |  April 17, 2023  |
 ^  Colors  |  Silver, black  |  Black  |  Black  |  White, black, red  |  Black  |
 [(phobos>https://www.reddit.com/r/dumbphones/comments/1lt9u6x/the_a202kc902kc_a203kc903kc_master_guide_update)]
@@ Line 56: / Line 58: @@
-Because Kyocera produces another flip-phone with the same [[wp>System on a chip|SoC]] for the American market, the [[https://www.kyoceramobile.com/rugged-devices/duraxv-extreme-plus|DuraXV Extreme+]], there may be additional software-locked radio bands on the DIGNO 4. However, there are various other inconsistencies with MediaTek's consumer-facing spec sheet for the Helio A22, such as a lack of 5GHz WiFi, WiFi 4 instead of 5, additional WiFi bands, and Bluetooth 5.1 instead of 5, potentially meaning the DIGNO 4 could have a different wireless setup. Docomo's DIGNO 4 offerings have different bands compared to SoftBank's, though, so at the very least, the missing bands on each carrier's phone could probably be unlocked. More research is needed. https://www.reddit.com/r/dumbphones/comments/1lph2qu/kyocera_rootgapps_help/nlsgnyi/
+Because Kyocera produces another flip-phone with the same [[wp>System on a chip|SoC]] for the American market, the [[..:kyocera_duraxv_extreme_plus|]], there may be additional software-locked radio bands on the DIGNO 4. However, there are various other inconsistencies with MediaTek's consumer-facing spec sheet for the Helio A22, such as a lack of 5GHz WiFi, WiFi 4 instead of 5, additional WiFi bands, and Bluetooth 5.1 instead of 5, potentially meaning the DIGNO 4 could have a different wireless setup. Docomo's DIGNO 4 offerings have different bands compared to SoftBank's, though, so at the very least, the missing bands on each carrier's phone could probably be unlocked. More research is needed. https://www.reddit.com/r/dumbphones/comments/1lph2qu/kyocera_rootgapps_help/nlsgnyi/
 ^  Miscellaneous[(#1)][(#4)]  ^^
@@ Line 96: / Line 98: @@
 ^  Versions  ^^^^^
 ^  A202KC[(http://android-dev.kyocera.co.jp/source/versionSelect_digno-keitai4.html)]  ^  A203KC[(http://android-dev.kyocera.co.jp/source/versionSelect_a203kc.html)]  ^  A204KC[(http://android-dev.kyocera.co.jp/source/versionSelect_digno-keitai4_for_biz.html)]  ^  KY-42C[(http://android-dev.kyocera.co.jp/source/versionSelect_digno-keitai_ky-42c.html)]  ^  KY-43C[(http://android-dev.kyocera.co.jp/source/versionSelect_digno-keitai-cameraless_ky-43c.html)]  ^
-|  1.000AL \\ 1.010AL \\ 1.020AL \\ 1.031AL \\ 1.040AL \\ 1.050AL \\ 1.060AL \\ 1.070AL  |  1.000AN \\ 1.010AN \\ 1.020AN \\ 1.031AN \\ 1.040AN \\ 1.050AN \\ 1.060AN \\ 1.070AN \\ 1.090AN |  1.001PO \\ 1.010PO \\ 1.020PO \\ 1.031PO \\ 1.040PO \\ 1.050PO \\ 1.060PO \\ 1.070PO  |  1.000GC \\ 1.011GC \\ 1.021GC \\ 1.031GC \\ 1.041GC \\ 1.050GC \\ 1.060GC \\ 1.071GC \\ 1.080GC \\ 1.090GC \\ 1.100GC  |  1.000QT \\ 1.011QT \\ 1.021QT \\ 1.031QT \\ 1.041QT \\ 1.050QT \\ 1.060QT \\ 1.071QT \\ 1.080QT \\ 1.090QT \\ 1.100QT  |
+|  1.000AL \\ 1.010AL \\ 1.020AL \\ 1.031AL \\ 1.040AL \\ 1.050AL \\ 1.060AL \\ 1.070AL  |  1.000AN \\ 1.010AN \\ 1.020AN \\ 1.031AN \\ 1.040AN \\ 1.050AN \\ 1.060AN \\ 1.070AN \\ 1.090AN |  1.001PO \\ 1.010PO \\ 1.020PO \\ 1.031PO \\ 1.040PO \\ 1.050PO \\ 1.060PO \\ 1.070PO  |  1.000GC \\ 1.011GC \\ 1.021GC \\ 1.031GC \\ 1.041GC \\ 1.050GC \\ 1.060GC \\ 1.071GC \\ 1.080GC \\ 1.090GC \\ 1.100GC \\ 1.110GC  |  1.000QT \\ 1.011QT \\ 1.021QT \\ 1.031QT \\ 1.041QT \\ 1.050QT \\ 1.060QT \\ 1.071QT \\ 1.080QT \\ 1.090QT \\ 1.100QT \\ 1.110QT |
 The A20XKC series oddly only has the open source code published up until 1.070XX, however phones with higher version numbers on those models have been confirmed. This list only contains confirmed versions we have seen so far.
@@ Line 105: / Line 107: @@
 === Rooting ===
-{{template>Main|article=~:Rooting the Kyocera DIGNO Keitai 4}}
-Due to the MediaTek chipset, these phones can be rooted using [[https://github.com/bkerler/mtkclient|MTKClient]]. Rooting allows users to access system directories, run programs with superuser access, install GMS (LINK), and more. This capability has been verified on the A202KC, A203KC, A204KC, and KY-42C (up to version 1.090) variants, though there should not be any difference on the KY-43C.
-The 1.090 updates for the DIGNO 4 devices, released in mid 2025, patched the exploit in the preloader used by MTKClient to crash the DA. It may be possible to circumvent this by shorting test points inside the device. A method that does not require disassembly has been found. Please join one of our [[:start#community|community]] servers for more information.
+{{template>Main|article=Rooting the Kyocera DIGNO Keitai 4}}
+<note important>Users on the KY-4XC should be aware that if they are planning to root their device that they should not connect their device to a network until they have done so. Unlike the A20XKC, the KY-4XC is capable of updating outside of Japan. At this time there is no known way to root the KY-4XC past version 1.090XX.</note>
+Due to the MediaTek chipset, these phones can be rooted using [[https://github.com/bkerler/mtkclient|MTKClient]]. Rooting allows users to access system directories, run programs with superuser access, install GMS (LINK), and more. This capability has been verified on the A202KC, A203KC, A204KC, and KY-42C (up to version 1.090XX) variants, though there should not be any difference on the KY-43C.
+The 1.090XX updates for the DIGNO 4 devices, released in mid 2025, patched the exploit in the preloader used by MTKClient to crash the DA. It may be possible to circumvent this by shorting test points inside the device. A method that does not require disassembly has been found. Please join one of our [[:start#community|community]] servers for more information.
 ===== Third-party applications =====
-{{template>Main|article=:Third party apps}}
+{{template>Main|article=:Third party apps:}}
 The DIGNO 4 does not come with a way to install third-party apps without external software. [[https://developer.android.com/tools/adb|Android Debug Bridge (ADB)]] can be used with a computer to install additional apps.
@@ Line 121: / Line 128: @@
 ==== SMS Apps ====
-{{template>Main|article=:Troubleshooting MediaTek SMS whitelist issues}}
+{{template>Main|article=troubleshooting:mediatek_sms_whitelist_issues}}
 This phone has a specific issue linked to third-party SMS apps where the apps have issues receiving texts. The behavior is such that when an alternative app is set as the default other than the stock "Mail" app or Google Messages, the phone will never receive texts while the app is not running[(https://www.neonplight.com/the-kyocera-a202kc/)]. This seems to be directly linked to the specific CPU that the phone has, as a MediaTek process will delete the SMS in this scenario, citing that the app is not "whitelisted"[(https://github.com/quik-sms/quik/issues/400)]. See the full article for details.
@@ Line 166: / Line 173: @@
 ^ Product pages | [[https://www.softbank.jp/mobile/products/keitai/digno-keitai4/|Softbank page]] \\ [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-keitai4/|Kyocera page]] | [[https://www.ymobile.jp/lineup/other/digno4/|Y!mobile page]] \\ [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/a203kc/|Kyocera page ]] | [[https://www.softbank.jp/biz/services/mobile/lineup/keitai/digno-keitai4-for-biz/| Softbank page]] | [[https://www.docomo.ne.jp/product/ky42c/|Docomo page]] | [[https://www.kyocera.co.jp/prdct/telecom/office/phone/lineup/feature-phone/ky-43c/ | Kyocera page ]]|
 ^ Manuals | [[https://faq.api.softbank.jp/olm_images/sb/237/PDF/digno-keitai4_quickstart.pdf|Softbank Quick Start (Japanese)]] \\ [[https://faq.api.softbank.jp/olm_images/sb/237/PDF/digno-keitai4_userguide.pdf|Softbank Instruction Manual (Japanese)]] \\ [[https://faq.api.softbank.jp/olm_images/sb/237/PDF/digno-keitai4_en_userguide.pdf|Softbank Instruction Manual (English)]] | [[https://www.ymobile.jp/lineup/digno4/data/digno4_userguide.pdf|Y!mobile manual (Japanese)]] | [[https://tm.softbank.jp/content/dam/common/services/mobile/lineup/keitai/digno-keitai4-for-biz/pdf/digno4forbiz-supplement-bundle.pdf|Softbank supplement manual (Japanese)]] | [[https://www.docomo.ne.jp/english/binary/pdf/support/trouble/manual/download/KY-42C_E_syousai.pdf|Docomo instruction manual (English)]] | [[https://support.ntt.com/upload/content/docomo/pdf/KY-43C_J_QSG.pdf|Docomo quick start guide (Japanese)]] \\ [[https://support.ntt.com/upload/content/docomo/pdf/KY-43C_J1_syousai.pdf|Docomo instruction manual (Japanese)]] [[https://support.ntt.com/upload/content/docomo/pdf/KY-43C_E1_syousai.pdf|Docomo guide (English)]] |
-^ Specs | [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-keitai4/spec.html|Kyocera page]] |  |  |  |  |
+^ Specs | [[https://www.kyocera.co.jp/prdct/telecom/consumer/lineup/digno-keitai4/spec.html|Kyocera page]] |  |  | [[https://www.docomo.ne.jp/binary/pdf/service/developer/smart_phone/spec/technical_info_spmode/KY-42C.pdf|Docomo technical spec PDF]] | [[https://www.docomo.ne.jp/binary/pdf/service/developer/smart_phone/spec/technical_info_spmode/KY-43C.pdf|Docomo technical spec PDF]] |