Backup contacts, calendar, photos and videos from Crosscall CORE-S4
Available guides for synchronization to the secure cloud
Supported functions
- contact synchronization
- calendar synchronization
- photo synchronization
- video synchronization
- automatic sync
Crosscall CORE-S4 is supported on PhoneCopy. Please note that following settings may vary a little depending on the firmware version.
Confirmed models
Confirmed versions
News
- 31/07/2025
- Recently we got new user of Crosscall CORE-S4 also in Germany. He is using PhoneCopy for backup of contacts.
- 08/01/2025
- User from Poland has synchronized contacts with his phone.
- 25/03/2023
- Crosscall CORE-S4 phone was synchronized by PhoneCopy user in Slovenia. His contacts were transferred.
- 24/02/2023
- We detected PhoneCopy app on Crosscall CORE-S4 phone in Netherlands. All contacts and media were backed up.
- 23/02/2023
- We detected PhoneCopy app on Crosscall CORE-S4 phone in Spain. All contacts and media were backed up.
KaiOS versions running on Crosscall CORE-S4
When synchronizing, PhoneCopy users had following KaiOS versions on their Crosscall CORE-S4: KaiOS 2.5.3.2 (100.00%).
Crosscall CORE-S4 users around the world
Crosscall CORE-S4 is preffered for contact backup by PhoneCopy users in several countries around the world - France - 53.40%, Austria (Österreich) - 35.73%, Belgium (België, Belgique, Belgien) - 7.96%, Netherlands (Nederland, Nederlân) - 1.17%, Poland (Polska) - 0.78%, Slovenia (Slovenija) - 0.39%, Spain (España, Espanya, Espainia, Espanha) - 0.19%, South Africa (Suid-Afrika, iNingizimu Afrika, uMzantsi Afrika, Afrika-Borwa, Afrika Borwa, Aforika Borwa, Afurika Tshipembe, Afrika Dzonga, iSewula Afrika) - 0.19%, Germany (Deutschland) - 0.19%.
Following heat map shows contacts synchronisations with Crosscall CORE-S4 using PhoneCopy across the globe.
Text guideline - How to backup
From Crosscall CORE-S4
- Download our PhoneCopy for KaiOS from application KaiOS Marketplace to your mobile device.
- After launching the application, create a new account from the application. If you have already created an account on web pages www.phonecopy.com, log in to this existing account in the application.
- After succesful login press "Synchronize" for complete synchronization, you can choose "This device >> Server" for one-way sync.
If you need more help with the settings, visit our step by step screenshot guide: How to synchronize contacts to phone with KaiOS
If you need more help with the settings, visit our step by step screenshot guide: How to backup contacts from phone with Kai OS
In the case of problems with synchronization, please contact us.
To Crosscall CORE-S4
- Download our PhoneCopy for KaiOS from application KaiOS Marketplace to your mobile device.
- After launching the application, log in to this existing account in the application.
- After succesful login press "Synchronize" for complete synchronization, you can choose "Server >> This device" for one-way sync.
If you need more help with the settings, visit our step by step screenshot guide: How to synchronize contacts to phone with KaiOS
If you need more help with the settings, visit our step by step screenshot guide: How to backup contacts from phone with Kai OS
In the case of problems with synchronization, please contact us.
User comments
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Hi, I noticed on your website that the Nokia 8000 4G is listed as supporting calendar sync. However, in my experience after testing it, the local calendar on my phone does not sync with my Google Calendar (which works in the web version). Only contact sync appears to function. Could you please clarify whether calendar sync is actually supported for this device, or if there is a workaround available? Thanks! akiesel, 28/12/2025
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Yes, you are right, the app only synchronizes contacts and media files. We have replied you in the CardDAV-related thread as well.
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