The short version
Key points
- Around 70 older Samsung handset models have firmware configured to attempt Triple Zero calls through Vodafone’s former 3G network.
- Telstra gave affected customers 28 days to update their software or replace their phones, with the warning applying across Australian mobile networks.
- The UN cybercrime treaty aims to improve cooperation against ransomware, phishing, human trafficking and other online offences.
- Privacy and technology groups argue the treaty is too broad and could enable excessive access to devices, credentials and electronic evidence.
- Australia has signed the treaty, but formal ratification still requires consideration and approval through Parliament.],
Older Samsung phones and Triple Zero access
Telstra has identified a firmware problem affecting about 70 older Samsung handset models. The devices were configured to send Triple Zero calls through Vodafone’s former 3G network rather than relying on other available networks.
The practical concern is that if both the Telstra and Optus networks are unavailable, an affected handset may not be able to connect to Triple Zero. Telstra has warned customers that they have 28 days to update the software or replace the phone. If they do neither, the device may be cut off completely across Australian mobile networks.
Telstra said the configuration was a matter for Samsung and Vodafone, while TPG and Vodafone also maintained that the issue was caused by how the phones were configured, rather than by their network. Samsung produced the firmware. Optus said it had previously used advertising, emails and SMS messages to warn customers about the emergency-calling risks associated with older 3G devices.
Why the issue matters
The warning follows an earlier Optus network failure that blocked thousands of Triple Zero calls and led to tragic outcomes, according to the report. That incident increased scrutiny of mobile networks and emergency-call reliability.
The central issue is not simply whether an older phone can connect to the internet or make ordinary calls. Emergency calling depends on network compatibility and the way a handset’s firmware handles available networks. Customers with affected devices therefore face a choice between finding an approved software update and replacing the phone.
The situation also raises a broader question about how long manufacturers should support older handsets. The report contrasts Apple’s update support with the less consistent expectations around some Android phones, although the specific support period for these Samsung models is not given.
Australia signs a UN cybercrime treaty
Australia has signed the United Nations Convention Against Cybercrime at a ceremony in Hanoi, Vietnam. The treaty is described as the first UN-endorsed instrument focused on cybercrime. It is intended to establish common offences and make it easier for law-enforcement agencies in different countries to cooperate and share electronic evidence.
The agreement covers serious online threats including phishing, ransomware, human trafficking and hate speech. Supporters argue that international cooperation is necessary because many scams and cyberattacks cross borders. A shared legal framework could assist with gathering evidence, pursuing suspects and disrupting international fraud operations.
Australia is already part of the Budapest Convention on Cybercrime, which it joined in 2013. The new UN agreement therefore adds a broader global framework rather than representing Australia’s first international cybercrime arrangement.
Privacy and surveillance concerns
Technology companies, cybersecurity groups and civil liberties organisations have raised concerns about the treaty’s breadth. Critics describe it as potentially becoming a surveillance treaty because some provisions may allow authorities, under a warrant, to require access to devices or credentials. That creates particular concerns for Australians travelling overseas, whose phones may contain personal information or corporate material.
Critics also argue that broad definitions could be interpreted expansively and potentially capture non-violent or ordinary technology-related activities. They are concerned about the effect on privacy, encryption and free speech, particularly if countries with weaker protections use the treaty’s cooperation mechanisms.
The UN Office on Drugs and Crime says countries can refuse requests that breach human rights or international law. Australia has signed the treaty but has not yet completed formal ratification. The Australian Government is expected to consider ratification later, subject to government approval and parliamentary processes.
TechManPat’s conclusion
My view is that the UN treaty could help Australian authorities pursue overseas scammers and cybercriminals, but its broad powers and privacy implications need close scrutiny before ratification. On the Samsung issue, I think the responsibility is likely to sit primarily with the handset firmware and its lack of ongoing support, but Telstra could handle the situation better by offering affected customers a replacement phone or a more constructive upgrade path instead of simply warning them about a blackout.
This knowledge-centre summary is based on the linked TechManPat video and reflects the information available when it was published. Check current pricing, availability and policies before acting.
