Samsung has started distributing its new interface, the One UI 8, for smartphones in the Galaxy line sold under the Japão, bringing a definitive solution to an old user security concern. The update, which is based on the Android 16 operating system, introduces an exclusive tool that allows you to completely erase all data stored in the Osaifu-Keitai area, managed by the FeliCa payments chip.
This new functionality is directly integrated into the system’s factory reset menu, simplifying a process that was previously complex and inaccessible to most consumers. The measure meets a growing demand for greater control over personal and financial information, especially when selling or passing on a used device, ensuring that no residual data remains on the device.
The complete formatting option in the FeliCa area is already being made available for several models of Galaxy smartphones, covering devices from different Japanese operators and also unlocked versions. The new feature, which was not widely publicized in the official Samsung release notes, was discovered by users who received the update and represents a significant advance in the management of sensitive data on mobile devices in the country.

What is FeliCa technology and its importance in Japão
Developed by Sony, FeliCa technology is the backbone of contactless payment systems in Japão, being deeply integrated into the daily lives of the local population. Conhecida on smartphones as “Osaifu-Keitai” (mobile wallet), it allows devices to function as public transport cards, such as the popular Suica and PASMO, as well as credit, debit cards, loyalty programs and even access keys.
Unlike other NFC technologies that are more common globally, FeliCa offers transactions with superior speed and security, which has consolidated its absolute dominance in the Japanese market. Como stores a vast array of financial and personal information, ensuring this data can be completely removed before reselling a device is a crucial security issue for consumers.
The old challenge in reselling smartphones
Until the arrival of One UI 8, owners of Galaxy phones faced a considerable hurdle when preparing their devices for resale. Simply deleting payment applications or canceling cards registered in the system was not enough to completely eliminate the residual information contained in the secure memory of the FeliCa chip.
This remaining data, although not directly accessible by a new owner, represented a security vulnerability and a source of great concern for those who value privacy. The lack of a simple cleaning method generated distrust and devalued the appliances on the used market.
The only way to guarantee effective cleaning was to resort to restricted and often expensive methods. Usuários from operator Docomo could request the service in one of its physical stores, but customers from other companies, such as au and SoftBank, did not have this option available, creating a disparity in the treatment of consumers.
An integrated solution for user privacy
Samsung’s implementation of this tool demonstrates detailed attention to the specific needs of the Japanese market, solving a problem that had persisted for years. Antes, the alternative for those who were not customers of Essa barrier forced many users to keep their old devices for fear of data leaks or to sell them for a lower price due to uncertainty about the security of the information contained on the chip. With the new function in the One UI 8, control returns to the user’s hands, who can carry out the procedure autonomously, safely and free of charge, directly in the device’s settings, aligning the experience of Galaxy devices with the best security and privacy practices demanded by Japanese consumers. The simplicity of the process, a single checkbox in the restoration menu, transforms what was a technical headache into a trivial and transparent step, strengthening trust in the brand and the Android ecosystem in the country.
How to access the new full cleaning functionality
The process for using the new function was designed to be intuitive and was integrated into the device’s standard restoration flow, not requiring advanced technical knowledge.
First, the user must navigate to the smartphone’s “Settings” menu and access the “General management” section, where the system options are located.
Within this menu, the option to select is “Restore” and then you must tap “Restore factory defaults” to start the formatting process.
On this last screen, before confirming the restoration, the system will display a new specific check box with the text “Initialize the FeliCa area completely”, which must be selected to carry out the deep cleaning along with the general formatting of the device.
Update availability and supported models
Samsung is distributing functionality broadly across devices that support the new One UI 8, ensuring that a large number of users will benefit. Older Modelos that are receiving the update, such as the Galaxy S22 line, already have the feature enabled, regardless of the mobile phone operator to which they are linked, be it au or Docomo. Isso unifies the experience and eliminates barriers that previously existed between customers of different providers.
Furthermore, all new devices that are launched from the factory with the Android 16 and One UI 8 on board will come with this option natively, consolidating the functionality as a security standard for the brand’s devices on the Japão. Essa strategy reinforces the company’s commitment to adapting its software to the particularities and regulatory and cultural requirements of the local market, which can become an important competitive differentiator compared to other brands that do not offer the same level of customization and technical support.
Improved security for the used market
The new tool has a direct and extremely positive impact on the growing second-hand smartphone market in Japão, where data security is a decisive factor when purchasing. The possibility of guaranteeing the total and irrecoverable deletion of data from the FeliCa chip increases the confidence of both sellers and buyers, facilitating safer transactions on online platforms, auctions and specialized stores.