1、以华为P10为例，打开手机“设置”应用；
/iknow-pic.cdn.bcebos.com/4e4a20a4462309f7843c825b7c0e0cf3d7cad623"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/4e4a20a4462309f7843c825b7c0e0cf3d7cad623?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/4e4a20a4462309f7843c825b7c0e0cf3d7cad623"/>
2、在设置界面下拉选择“系统”选项；
/iknow-pic.cdn.bcebos.com/8cb1cb1349540923a43b4c379c58d109b3de492c"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/8cb1cb1349540923a43b4c379c58d109b3de492c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/8cb1cb1349540923a43b4c379c58d109b3de492c"/>
3、接下来在系统界面选择“备份与恢复”选项；
/iknow-pic.cdn.bcebos.com/d058ccbf6c81800a9aa1a647bf3533fa828b4736"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d058ccbf6c81800a9aa1a647bf3533fa828b4736?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/d058ccbf6c81800a9aa1a647bf3533fa828b4736"/>
4、在备份与恢复界面选择“云备份”选项；
/iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbfbf596f63224f4a20a4dd79"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbfbf596f63224f4a20a4dd79?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbfbf596f63224f4a20a4dd79"/>
5、接下来在云备份界面选择未接电话删除之前的备份日期；
/iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbf87596f63224f4a20a4dd31"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbf87596f63224f4a20a4dd31?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/279759ee3d6d55fbbf87596f63224f4a20a4dd31"/>
6、接下来在备份详情界面选择右下角的“恢复”选项；
/iknow-pic.cdn.bcebos.com/0823dd54564e9258ada1a9a79282d158cdbf4ee5"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/0823dd54564e9258ada1a9a79282d158cdbf4ee5?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/0823dd54564e9258ada1a9a79282d158cdbf4ee5"/>
7、接下来在弹框中选择“恢复”选项，这样就可以找回删除的未接电话了；
/iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea3ab82caadb39b6003af3b32b"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea3ab82caadb39b6003af3b32b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea3ab82caadb39b6003af3b32b"/>